AD9958是一款功能强大的DDS芯片，是AD公司新上市的产品，能够产生标准信号已及线性调频，非线性调频等信号。-AD9958 is a new chip with much more greater function.It is very suitable in signal processing. It can generate kinds of signal format such as standord signal and lfm signal.

DDS芯片产生三角波线性调频信号的FPGA程序-DDS chip generated triangular wave linear FM signal of the FPGA program

在ISE下，FPGA产生线性调频信号，并且产生信号的参数可调(In ISE, the FPGA generates a linear frequency modulation signal, and the parameters of the signal are adjustable.)