本文利用软件相移技术得到相互正交的参考正弦波信号；通过互相关算法，完成了软正交矢量型LIA相关器的具体实现；利用该方法实现了对微弱信号幅值和相位的检测，有效地抑制干扰，减少了硬件电路成本。通过Matlab仿真，验证了该算法具有一定的优越性。-In this paper, the software technology is orthogonal to the phase shift of the reference sine wave signal through cross-correlat

本程序是由matlab编写的频谱分析仪器，可以生成正弦、方波、三角波或混有白噪声的信号，还可以对信号进行指定点数的频谱分析。-This program is written by the matlab spectrum analysis instrument that can generate sine, square, triangle, or mixed with white noise signal, you can also specify the signal spectrum ana

傅里叶变换的一些相关matlab学习案例，光看理论学起来费力，里面是傅里叶逼近和正弦波合成方波例子-Some relevant case study matlab Fourier transform, look effortlessly learn the theory, which is the Fourier synthesis of sine and square wave approximation examples

program to generate sine, square, sawtooth and sowtooth with timing constant wave with option using hybrid programming.