Study on a Method of Compensation for the Range Profile of High Velocity Spatial Targets
For wideband LFM signal, the paper presents a mathematical model of echo from spatial maneuvering targets and analyzes the impact of high acceleration and maneuvering on range profile quantitatively. According to invariable chirp rate, a range profile compensation algorithm based on difference is proposed. It can estimate the chirp rate accurately by FFT without acceleration and velocity estimation, so the influence of high-order coefficient is eliminated. Due to its no phase estimation, this algorithm has good anti-noise performance. In addition, the sample rate does not need to be higher than the bandwidth of LFM signal, so the processing speed is improved. The analysis is proved by simulation results.
Wide-band Chirp Source Range Profile Estimation of chirp rate velocity compensation
Zhang Kun-fan Feng Zhi-hong Ma De-bao
Zhengzhou Information Engineering University Zhengzhou, China
国际会议
2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)
厦门
英文
450-453
2010-04-12（万方平台首次上网日期，不代表论文的发表时间）