中文说明：代码展示了如何生成二项编码及其频谱，这对我们学习雷达信号很有帮助！这其中包括7位、13位二相码，如果想要扩展也比较简单！希望能够帮助你！！！
English Description：
Code shows how to generate a binary code and its spectrum, which is very helpful to us radar signals! That includes 7-, 13-bit binary codes, if you want to extend is relatively simple! Hope we can help you!!!