Vol.4 No.6 (December 2014)
Data Compression Technology of Distributed Cooperative Passive Location
詹 毅 ：中国电子科技集团36所，通信信息控制和安全技术重点实验室，嘉兴
In data compression technology of distributed cooperative passive location, TDOA has the advan-tages of high positioning accuracy, positioning speed and strong anti-interference ability. But, TDOA location needs different sensors to transmit the received signal to the same sensor to make TDOA estimation, which needs massive data transmission. In order to solve the massive data transmission, data compression is used in location. For getting higher compression ratio, vector quantization is used to deal with the signal. Through simulating the different vector dimension and different codebook size to find what affect the TDOA estimation accuracy. Experiments prove that vector quantization can obtain high compression ratio without loss of the accuracy of TDOA estimation, and solve the problem of massive data transmission in TDOA effectively.
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