介绍了一种利用信号自相关处理进行快速测频的方法 ,可以提高数字接收机的测频速度。文中对该方法测频原理进行了理论分析 ,并对其作了仿真 ,证明该方法是简单可行的。文中还对该方法的性能进行了分析 ,表明其运算量少 ,运算速度快。这对数字接收机测频部分设计有一定的理论和实际意义。 A method of fast frequency measurement using signal autocorrelation is introduced, which can improve the frequency measurement speed of digital receiver. In this paper, the principle of frequency measurement of this method is theoretically analyzed and simulated. It is proved that this method is simple and feasible. The paper also analyzes the performance of the method, indicating that the amount of computation is less and computing speed is faster. This digital receiver frequency measurement part of the design has some theoretical and practical significance.