1·The effect of quantification noise, saturation noise and bit error noise of synthetic aperture radar(SAR)raw data on the signal to noise ratio of distributed targets is analyzed.
定量分析了星载合成孔径雷达(SAR)原始回波信号的量化噪声、饱和噪声以及误码噪声对面目标信噪比的影响;
2·The effects of the channel bit error on the reconstructed images of the Differential Pulse Code Modulation (DPCM) systems are analysed in this paper.
本文分析了信道误码对DPCM图象传输系统重建图象的影响。
3·The scheme USES pilot symbols to estimate the channel and improves the bit error performance of the system.
该方案使用的导频符号来估计信道,并提高了系统的误码性能。