基于DSP的基带噪声模拟模块设计

Design of a modem of noise simulation for base signal based on DSP

针对短波调制解调模块进行抗干扰能力检查时存在的检测设备多、设备调节困难、参数不准确等问题,设计了一种基于DSP的数字化基带信号噪声模拟模块。模块通过基带信号有效值计算、噪声生成、增益调节等算法,根据检测需求,实现噪声叠加,减少了检测所需设备,提高了噪声叠加精度,在实际研发、生产和维修过程中具有很好的应用价值。

In order to solve the problem of the testing on the modem of the shortwave radio signal such as low efficiency,hard work and low accuracy,a design of digital noise simulation modem base on the device platform of DSP has been proposed.The modem can reduce the number of the testing instruments and raise the accuracy of the noise.It has great practical value in the process of design,produce and repairs.