讨论了数字脉冲压缩系统中量化误差对脉压输出波形和信噪比的影响。首先从理论上对Ａ／Ｄ量化误差的大小及其对脉压结果的影响进行了讨论，接着仿真了在不同的Ａ／Ｄ采样位数下量化误差对脉压输出波形和信噪比的影响。得到了当Ａ／Ｄ采样的有效位数大步于１２位时，量化误差对脉压输出波形和信噪比的影响可以忽略不计的结论，迷工程实现提供了依据。

The effect of quantization error on the result of pulse compression is analyzed in this paper. The size of this kind of error and its effect on the result of pulse compression are discussed theoretically firstly. The effects of different A/D resolution are simulated. Finally, the conclusion, that is, the effect on pulse compression can be ignored if A/D valid resolution is greater than 12bit, was obtained.

TN78 TN957.7