mmap函数是unix/linux下的系统调用,来看《Unix Netword programming》卷二12.2节对mmap的介绍:
The mmap function maps either a file or a Posix shared memory object into the address space of a process.We use this...
原文转载于:http://blog.csdn.net/xiahouzuoxin/article/details/9790455 非常感谢。
傅里叶变换或者FFT的理论参考:
[1] http://www.dspguide.com/ch12/2.htm
The Scientist and Engineer's Guide to Digital Sign...