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在分析了多普勒信号的特性及与语音信号的区别后 ,采用自适应离散余弦变换算法对多普勒信号进行了压缩编码 ,在中等编码速率下得到了较好的压缩编码效果。文中提出了相关 -自适应离散余弦变换 (C- ADCT)压缩编码算法 ,改进算法提高了自适应离散余弦变换算法的抗噪性能
After analyzing the characteristics of the Doppler signal and the difference with the speech signal, the Doppler signal is compressed and encoded by the adaptive discrete cosine transform algorithm, and the better compression and coding result is obtained at the medium coding rate. In this paper, a correlation-adaptive discrete cosine transform (C-ADCT) compression coding algorithm is proposed. The improved algorithm improves the anti-noise performance of the adaptive discrete cosine transform