【摘要】 正交相干检波保留了信号复包络的所有信息,因而在信号处理中得到了广泛应用。该文研究了数字正交相干检波的多相滤波实现方法并给出了基于CPLD的专用IC芯片设计,计算机仿真结果表明该方法可以满足高性能信号处理的要求。更多还原

【Abstract】 The quadrature coherent detection is widely used in signal processing field, since it can reserve all information of the complex envelope of signal. This paper presents a digital quadrature coherent detection realization with the ployphase filtering, and the ASIC design of quadrature interpolator based on CPLD. The results show this method can satisfy the requirements of high performances of signal processing.更多还原