基于ｆｐｇａ，采用ｑｕａｒｔｕｓ２的ＤＤＳ信号发生器，采用高速ＤＡＣ９０８为数模芯片，并可通过５１单片机送入调制信号进行ＦＭ调制-Based on the fpga, the use of the DDS signal generator quartus2 using DAC908 number of high-speed chip module, and passed into 51 single-chip FM modulation signal modulation