Analysis and Simulation of Time-delay Estimation Methods and SNR Threshold for the Tank Acoustic Signal
Time delay is a key technique of target localization on battlefield. On the basis of the weighting principles of the generalized cross-correlation, making use of experimental data of tank, simulation and performance analysis of these time-delay estimation algorithms were made, on the other hand, the SNR thresholds of normal cross-correlation and weighting cross-correlation algorithms were obtained by computer simulation. The result show that the smoothed coherence transform(SCOT) method takes on high resolution of cross-correlation peak, the lowest SNR threshold, lesser computation quantity and stronger capability of restraining periodic component interfused in tested signal. The research results provide evidence for selecting time-delay estimation method in engineering application.
time-delay estimation weighting principle performance analysis SNR threshold
Su Shujing Wang Zenggang Yan Jinglong
School of Electronics and Computer Science and Technology, North University of China, Shanxi 030051, China Key Laboratory of Instrumentation Science and Dynamic Measurement, Ministry of Education, Taiyuan
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
1213-1218
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）