用于无线通信中的数字下变频，主要关注NCO设计还有使用cordic算法实现坐标变换和解调！-For wireless communication of digital down conversion, the main concern there NCO design algorithm using cordic coordinate transformation and demodulation!

电子科大2009-数字中频技术的研究与FPGA实现，主要是DDC的FPGA实现，NCO部分的FPGA实现！-UESTC 2009- Digital IF Research and FPGA, the FPGA implementation is mainly DDC, NCO segment FPGA to achieve!

numerically controlled oscillator has been designed using vhdl programming which produces an output when input given in binary bits format.