数字控制振荡器（NCO，numerical controlled oscillator）是软件无线电、直接数据频 率合成器（DDS，Direct digital synthesizer）、快速傅立叶变换（FFT，Fast Fourier Transform） 等的重要组成部分，同时也是决定其性能的主要因素之一，随着芯片集成度的提高、在信号 处理、数字通信领域、调制解调、变频调速、制导控制、电力电子等方面得到越来越广泛的 应用。-Digital controlled oscilla

altera cordic ip core, 包含文档，完整设计，以及测试向量-altera coedic ip core, including the document, whole design, and the testbench.

CFFT is a radix-4 fast Fourier transform (FFT) core with configurable data width and a configurable number of sample points in the FFT. Twiddle factors are implemented using the CORDIC algorithm, causing the gain of the CFFT core to be differen

Includes the modulation, demodulation, signal to noise ratio calculation, cordic matlab simulation algorithm, Modern signal processing used in the spectral estimation in matlab.