关于A/D转换器量化误差与“量化相对误差”的讨论

On the quantization error of the A/D change-over circuit and its relative error

A/D转换器在转换模拟信号为数字信号时 ,量化误差对大小模拟信号影响不同 ,对小信号转换精度造成的误差较大。为提高小信号的转换精度 ,本文提出量化相对误差问题 ,并给出一种误差平衡法 ,使A/D转换器转换小信号误差较大的问题得以改善。

When analog signals are converted into digital signals by A/D change-over circuit, the analog signals are differently affected by the quantization error and the error of small signal converting accuracy is rather big. In order to increase the small signal converting accuracy this paper puts the problem of quantization relative error and gives a method of error balance which may improve the problem of rather big error of small signals converted by the A/D change over circuit.