CAJ | 학술논문

为了在雷达信号处理和数据处理算法研究中产生真正的白噪声，提出了一种利用话筒、计算机声卡和Matlab软件产生高斯白噪声的方法。该方法首先采集环境噪音，然后进行白化滤波处理，使其变成白噪声，最后进行统计检验，若通过正态性和独立性检验，则作为高斯白噪声输出。实验结果表明，该方法既避免了数学方法的确定性，又不必设计专门的硬件电路；产生的白噪声能满足正态性和独立性的要求。
위료재뢰체신호처리화수거처리산법연구중산생진정적백조성，제출료일충이용화통、계산궤성잡화Matlab연건산생고사백조성적방법。해방법수선채집배경조음，연후진행백화려파처리，사기변성백조성，최후진행통계검험，약통과정태성화독립성검험，칙작위고사백조성수출。실험결과표명，해방법기피면료수학방법적학정성，우불필설계전문적경건전로；산생적백조성능만족정태성화독립성적요구。
In order to generate the real white noise for the research of radar signal processing and data processing algorithm, this paper studies a novel method of employing a microphone, computer sound card and Matlab software to generate white Gaussian noise. In this scheme, the environmental noise acquisition is carried out, whitening filtering processing is done to make it become white noise, and finally, the statistical test is performed, where it can be taken as the output of white Gaussian noise if it passes the normality and independence test. Experimental results show that this proposed method can not only avoid the certainty of mathematical method, but also no need to design the specific hardware circuit, and the white noise generated can meet the requirements for normality and independence.