关键词: 混合同余法, 中心极限定理, 伪随机序列, FPGA

Abstract:

In the field of electronic countermeasure technology,the method of modeling noise source by pseudo-random number with FPGA brings great convenience for achieving all kinds of noise interferences.The implementation of random noise generator with FPGA by mix congruence method and central limit theorem is designed in the article.The algorithm of traditional mix congruence method is simplified to avoid many multiplications and divisions.Test results show that the method is not only feasible and effective,but simple and efficient.The generated pseudo-random number has the characteristics of flexible and controllable key parameters such as cycle,mean,variance,and variable probability distributions,which can provide different noise samples for various noise interferences.

Key words: mix congruence method;central limit theorem;pseudo-random number;field programmable gate array