為了有效跟蹤多普勒信號，設(shè)計了一種離散跟蹤-微分器，對于輸入的任意有限區(qū)域上積分有界的信號，從數(shù)學(xué)上證明了其漸近穩(wěn)定性、跟蹤的快速性；仿真結(jié)果表明了設(shè)計的正確性。該線性離散跟蹤-微分器，能夠消除差分法中的誤差，獲得輸入信號的解析解，其跟蹤速度快，設(shè)計過程簡單。
關(guān) 鍵 詞 多普勒信號; 線性離散跟蹤-微分器; 有界區(qū)域; 差分

Abstract In order to track Doppler signal effectively, a linear discrete-time tracking-differentiator is designed. For the integral-bounded input signal on an arbitrarily finite field, the progressive stabilization and the rapidity of this kind of tracking-differentiator are proved from mathematical analysis and the result of simulation. The obvious error occurred in difference method can be basically removed by using this kind of linear discrete-time tracking-differentiator and the design process is simple.
Key words Doppler signal; linear discrete-time tracking-differentiator; bounded field; difference