#### DMCA

## novel source localization scheme based on unitary esprit and city electronic maps in urban environments (2009)

Venue: | Progress in Electromagnetics Research |

Citations: | 6 - 0 self |

### Citations

530 |
Detection of signals by information theoretic criteria
- Wax, Kailath
- 1985
(Show Context)
Citation Context ...sin θic ) + n(t), (9) where, l (from 0 to L − 1) denotes the index of antenna sensors of the ULA at Rx, N : The number of propagation paths that can be performed by using the modified MDL proposed in =-=[23, 28]-=-, Ai: Path loss, f0: Center frequency, ∆f : Frequency gap, d: Sensors interval, θi: The i-th path arrival angle, τi: The i-th path delay, and n(t): The additive white Gaussian noise. In the simulation... |

102 |
A non-line-of-sight error mitigation algorithm in location estimation
- Chen
- 1999
(Show Context)
Citation Context ...+ (2d2) 2. (13) Case (d): If two parallel walls as shown Fig. 5(d) are d1 and d2 from the real positions respectively, the distance between the estimated location and real location is ∆d = 2d1 + 2d2. =-=(14)-=- So the estimated error caused by the terrain data error can be summarized as ∆d ≤ √√√√√( Nx∑ i=1 2di )2 + Ny∑ j=1 2dj 2 ≤ Nx+Ny∑ i=1 2|di|. (15) Nx and Ny denote the numbers of error walls paral... |

99 | Design of indoor positioning systems based on location fingerprinting technique
- Kaemarungsi
- 2008
(Show Context)
Citation Context ...nding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss=-=[33]-=-[34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ray tracingswith ToA and DoAsĜ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ As For both LoSsand NLoS sources(TDoA) [32... |

76 |
Unitary ESPRIT: how to obtain increased estimation accuracy with a reduced computational burden
- Haardt, Gershman
- 1995
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Citation Context ...245 is proposed in this paper. It employs the Back Ray Tracing (BRT) [19, 20] technique with the city electronic map and high resolution signal parameter estimation algorithm-Unitary ESPRIT (UESPRIT) =-=[21, 22]-=-. UESPRIT is a simple and highly efficient method for estimating signal parameters based on the translational invariance geometry of an array. It has been proved that UESPRIT can gain higher accuracy ... |

70 | Hybrid TDOA/AOA mobile user location for wideband cdma cellular systems
- Cong, Zhuang
- 2002
(Show Context)
Citation Context ...omparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1][2]s[11]sTrilaterations=-=[12]-=-sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ray tracingswith ToA and D... |

64 |
Wireless Location in CDMA Cellular Radio Systems
- Caffery
- 2000
(Show Context)
Citation Context ... (hgwang@zju.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] =-=[8]-=-[9][10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation ... |

53 | Nonline-of-sight error mitigation in mobile location
- Cong, Zhuang
- 2004
(Show Context)
Citation Context ...pendicular with each other, which are d1 and d2 from the real positions respectively, as shown in Fig. 5(c), the distance between the estimated location and real location is ∆d = √ (2d1) 2 + (2d2) 2. =-=(13)-=- Case (d): If two parallel walls as shown Fig. 5(d) are d1 and d2 from the real positions respectively, the distance between the estimated location and real location is ∆d = 2d1 + 2d2. (14) So the est... |

47 |
Simultaneous Schur decomposition of several nonsymmetric matrices to achieve automatic pairing in multidimensional harmonic retrieval problems
- Haardt, Nossek
- 1998
(Show Context)
Citation Context ...245 is proposed in this paper. It employs the Back Ray Tracing (BRT) [19, 20] technique with the city electronic map and high resolution signal parameter estimation algorithm-Unitary ESPRIT (UESPRIT) =-=[21, 22]-=-. UESPRIT is a simple and highly efficient method for estimating signal parameters based on the translational invariance geometry of an array. It has been proved that UESPRIT can gain higher accuracy ... |

45 |
Closed-form 2-D angle estimation with rectangular arrays in element space or beamspace via Unitary ESPRIT
- Zoltowski, Haardt, et al.
- 1996
(Show Context)
Citation Context ...arameter need to be estimated. It is easy to find out that (2b) satisfy the following invariance properties: J1AG · Φ = J2AG , (3) where the diagonal matrix Φ = diag{ejµi}di=1. According to the paper =-=[25]-=-, (3) can be changed to K1D · Ω = K2D. (4) In Equation (4), D is the transformed steering matrix, which is defined as D = QHLAG [16], K1 K2 and Ω are the transformed selection matrices and the real-va... |

43 | Least squares algorithms for time-of-arrival-based mobile location
- Cheung, So, et al.
(Show Context)
Citation Context ...r than 10 dB. 1. INTRODUCTION Recently, source localization becomes an ad hoc topic in wireless communications. There are many typical methods [1–5] for locating a source, e.g., time-of-arrival (TOA) =-=[6, 7]-=-, time difference of arrival Corresponding author: H. G. Wang (hgwang@zju.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter ... |

43 | Time-of-Arrival Based Localization Under NLOS Conditions
- Chan, Tsui, et al.
(Show Context)
Citation Context ...ted location and real location is ∆d = 2d1 + 2d2. (14) So the estimated error caused by the terrain data error can be summarized as ∆d ≤ √√√√√( Nx∑ i=1 2di )2 + Ny∑ j=1 2dj 2 ≤ Nx+Ny∑ i=1 2|di|. =-=(15)-=- Nx and Ny denote the numbers of error walls parallel with x axis and y axis respectively. According to (15), the estimated error increases if the number of signal reflections increases. From the stat... |

41 |
A new approach to 3-D ray tracing for propagation prediction in cities
- Liang, Bertoni
- 1998
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Citation Context ...0 80 90 x (m) 10m10m 10m Rx Tx 5m 5m 5m #1 #2 #3 #5#4 #6 #7 estimated position real position 0 Figure 6. (a) The simulation scenery in [30]; (b) multisource position in the scenery similar to that in =-=[31]-=-. 0 2 4 6 8 10 12 14 16 18 20 SNR (dB) 5 10 15 20 25 30 0 2 4 6 8 10 M= 300 M= 100 M= 60 M= 300 (3D) 0 2 4 6 8 10 12 14 16 18 20 SNR (dB) 6 7 8 9 10 11 12 13 14 15 16 (a) (b)sav er ag esεso f s im ui ... |

34 |
Detection of number of sources via exploitation of centro-symmetry property
- Xu, Roy, et al.
- 1994
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Citation Context ...ic array configurations. A sensor array is called centrosymmetric if its element locations are symmetric with respect to the centroid and the complex response patterns of paired elements are the same =-=[23]-=-. The uniform linear array (ULA) used in practice is centrosymmetric. The ULA is decomposed into two subarray, viz. subarray 1 and subarray 2, by selection matrices J1 and J2 that choose l elements of... |

33 |
Efficent One-, Two-, and Multidimensional HighResolution Array
- Haardt
- 1996
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Citation Context ... 0 −jΠq , (6) for example, is left Π-real of odd order. The unitary left Π-real matrix of size 2q × 2q is obtain from (6) by dropping its center row and center column. In the first step of UESPRIT =-=[25, 26]-=-, forward-backward averaging is achieved by transforming the complex-valued data matrix X into real-valued matrix, Viz. T (X) = QHL [ X ΠLXΠN ]Q2N ∈ <L×2N . (7) Its d dominant left singular vectors Es... |

26 |
An SBR/image approach for radio wave propagation in indoor environments with metallic furniture
- Chen, Jeng
- 1997
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Citation Context ... Consequently, the signal parameters τ̃N = [τ̃1, . . . , τ̃N ]T and θ̃N = [θ̃1, . . . , θ̃N ]T can be obtained using 2-D UESPRIT in (10). Step Two: Locating the source using BRT An SBR/image approach =-=[29]-=- is used in the BRT technique. With the estimated parameters sets τ̃N = [τ̃1, . . . , τ̃N ]T and θ̃N = [θ̃1, . . . , θ̃N ]T derived by UESPRIT, the arrival angles and the lengths of path which the sig... |

22 |
Centrohermitian and skew-centrohermitian matrices,” Linear Algebra and its
- Lee
- 1980
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Citation Context ...ces (5) K1 = 2 · Re { QHl J2QL } , K2 = 2 · Im { QHl J2QL } and Ω = diag { tan [µi 2 ]}d i=1 , 1 ≤ i ≤ d (5) QHl and QL are left Π-real matrix which is defined as matrices Q ∈ CL×L satisfying ΠMQ = Q =-=[21, 24]-=-. The unitary matrix Q2q+1 = 1√ 2 [ Iq 0 Πq 0 jIq√ 2 0 0 −jΠq , (6) for example, is left Π-real of odd order. The unitary left Π-real matrix of size 2q × 2q is obtain from (6) by dropping its cente... |

19 |
An AOA assisted TOA positioning system
- Deng, Fan
- 2000
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Citation Context ...g et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1][2]s=-=[11]-=-sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ray tra... |

17 |
The application of ray-tracing to mobile localization using the direction of arrival and received signal strength in multipath indoor environments
- Tayebi, Gómez, et al.
(Show Context)
Citation Context ...244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] =-=[1]-=-[2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back... |

15 | Localization of omni-directional mobile device in multipath enviroments - Seow, Tan |

13 |
Three-dimensional localization system for impulsive noise sources using ultra-wideband digital interferometer technique
- Soliman, Morimoto, et al.
(Show Context)
Citation Context ... Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1]=-=[2]-=-s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ra... |

13 |
Path-loss prediction model for microcells
- Har, Xia, et al.
- 1999
(Show Context)
Citation Context ...20 30 40 ys(m ) x (m) 40 5010 20 300 60 70 80 40 5010 20 300 60 70 80 90 x (m) 10m10m 10m Rx Tx 5m 5m 5m #1 #2 #3 #5#4 #6 #7 estimated position real position 0 Figure 6. (a) The simulation scenery in =-=[30]-=-; (b) multisource position in the scenery similar to that in [31]. 0 2 4 6 8 10 12 14 16 18 20 SNR (dB) 5 10 15 20 25 30 0 2 4 6 8 10 M= 300 M= 100 M= 60 M= 300 (3D) 0 2 4 6 8 10 12 14 16 18 20 SNR (d... |

12 |
Fast ray tracing using a space-division algorithm for RCS prediction
- Jin, Suh, et al.
- 2006
(Show Context)
Citation Context ...ation burden. Unlike the methods mentioned above, a novel localization method Progress In Electromagnetics Research, PIER 94, 2009 245 is proposed in this paper. It employs the Back Ray Tracing (BRT) =-=[19, 20]-=- technique with the city electronic map and high resolution signal parameter estimation algorithm-Unitary ESPRIT (UESPRIT) [21, 22]. UESPRIT is a simple and highly efficient method for estimating sign... |

7 |
A path-corrected wall model for ray-tracing propagation modeling
- Teh, Kung, et al.
(Show Context)
Citation Context ...ation burden. Unlike the methods mentioned above, a novel localization method Progress In Electromagnetics Research, PIER 94, 2009 245 is proposed in this paper. It employs the Back Ray Tracing (BRT) =-=[19, 20]-=- technique with the city electronic map and high resolution signal parameter estimation algorithm-Unitary ESPRIT (UESPRIT) [21, 22]. UESPRIT is a simple and highly efficient method for estimating sign... |

6 |
Bias of the maximum likelihood DOA estimation from inaccurate knowledge of the antenna array response
- Landesa, Castro, et al.
- 2007
(Show Context)
Citation Context ...gwang@zju.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8]=-=[9]-=-[10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation met... |

6 |
Direction of arrival estimation method using a 2-L shape arrays antenna
- Harabi, Changuel, et al.
(Show Context)
Citation Context ...ng@zju.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9]=-=[10]-=- [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method ... |

6 |
A Novel Approach to Mobile-Terminal Positioning Using Single Array Antenna in Urban Environments
- Kikuchi, Sano, et al.
(Show Context)
Citation Context ... ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16]=-=[17]-=- For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ray tracingswith ToA and DoAsĜ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ As For both LoSsand NLoS sources(TDoA) [32], angle-of-arrival (AOA/... |

6 |
Mobile terminal location for UMTS
- Ahonen, Eskelinen
- 2003
(Show Context)
Citation Context ...g parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33]=-=[34]-=-sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ray tracingswith ToA and DoAsĜ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ As For both LoSsand NLoS sources(TDoA) [32], a... |

5 |
Non-Taylor series based positioning method for hybrid GPS/cellphone system
- Liew, Tan, et al.
(Show Context)
Citation Context ...H. G. Wang (hgwang@zju.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions=-=[4]-=-[6][7] [8][9][10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasesco... |

5 |
Investigation of direct A-GPS positioning for hybrid E-OTD/GNSS
- Liew, Tan, et al.
(Show Context)
Citation Context ...du.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3]=-=[5]-=-[32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our met... |

3 |
A novel antenna concept for double-directional 262 Song et al. channel measurements
- Zwick, Hampicke, et al.
- 2004
(Show Context)
Citation Context ...ngle, τi: The i-th path delay, and n(t): The additive white Gaussian noise. In the simulationM ·∆f ·d ·L/c < 0.01, Progress In Electromagnetics Research, PIER 94, 2009 249 so (9) can be simplified to =-=[27]-=- yl,m(t) = N∑ i=1 Aie −j2pif0(t−τi)ej2pim∆fτiej2pif0 dl sin θi c + n(t) µ1i = 2pif0 d sin θi c and µ 2 i = 2pi∆fτi . (10) Here we sample one temporal snapshot of each tone, and then perform a smoothin... |

2 | Numercial and experimental study on three dimensional localization for Ultra-wideband impulsive noise sources
- Soliman, Hirita, et al.
- 2005
(Show Context)
Citation Context ...u.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] =-=[3]-=-[5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our ... |

2 |
A TOA based location algorithm reducing the errors due to non-line-of-sight (NLOS) propagation
- Wang, Wang, et al.
- 2003
(Show Context)
Citation Context ...r than 10 dB. 1. INTRODUCTION Recently, source localization becomes an ad hoc topic in wireless communications. There are many typical methods [1–5] for locating a source, e.g., time-of-arrival (TOA) =-=[6, 7]-=-, time difference of arrival Corresponding author: H. G. Wang (hgwang@zju.edu.cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter ... |

2 | Blind localization of 3G mobile terminals in multipath scenarios
- Algeier, Demissie, et al.
(Show Context)
Citation Context ...ed). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5][32] [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint =-=[16]-=-[17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method Back ray tracingswith ToA and DoAsĜ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ Ĝ As For both LoSsand NLoS sources(TDoA) [32], angle-of-arrival (... |

2 |
A TDOA location scheme in OFDM based WMANs
- Ni, Ren, et al.
- 2008
(Show Context)
Citation Context ...cn). 244 Song et al. Table 1. Comparison between different position methods (symbol √ denotes the corresponding parameter is used). ToA DoA TDoA RSS Performance Descriptions[4][6][7] [8][9][10] [3][5]=-=[32]-=- [1][2]s[11]sTrilaterations[12]sOnly for LoSssource Trilaterating with signal parameters of LoS pathss[33][34]sFingerprint [16][17] For both LoSsand NLoS sourcesDatabasescorrelation method Our method ... |