The coherent quadrature detector is one of the key technologies for providing high quality quadrature signal for digital signal processing in radar, sonar, communication and other systems.
正交相干检波是雷达、声纳和通信等系统中为数字信号处理提供高质量的正交信号的关键技术之一。
When it is realized by using the analog devices, the conventional quadrature coherent detector may result in the large image frequency errors.
传统的正交相干检波器由模拟器件构成，存在较大的镜频误差。
The quadrature coherent detector is widely used in the field of signal processing since it can reserve all information about the complex envelope of IF signal.
正交相干检波可以保留信号复包络的所有信息，因而在信号处理领域中有广泛的应用。
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