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| A Passive Location Algorithm Based on the Virtual TDOAs of Moving Array |
| ZHOU Longjian LUO Jingqing KONG Hui |
| (Electronic Engineering Institute, Hefei 230037, China) |
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Abstract To solve the problem of passive location for the emitter with fixed Pulse Framework Cycle (PFC), a passive location algorithm based on virtual TDOAs of moving array is proposed. The signal is received by a moving single sensor. The position of emitter is estimated with the multiple measurements of pulse arrival time in different sensor locations. A passive location algorithm based on high-order statistics is proposed for pulse framework cycle known and unknown. The Cramer-Rao Lower Band (CRLB) is derived in the above two cases. The simulation results show that the location accuracy is close to CRLBs in different cases. When pulse framework cycle is known, the location accuracy of virtual TDOAs is better than the real aperture array. When pulse framework cycle is unknown, the location accuracy of virtual TDOAs is slightly lower than the real aperture array.
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Received: 26 August 2016
Published: 22 January 2017
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| Fund: Natural Scientific Fundamental Research Project of Shanxi Province of China (2013JQ8020) |
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Corresponding Authors:
ZHOU Longjian
E-mail: zhoulj007@126.com
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