数字正交解调 digital quadrature demodulation
正交解调误差 Quadrature Demodulation Errors
正交相干解调器 quadrature coherent demodulator
正交调制解调 quadrature modem
正交幅度调制解调技术 quadrature amplitude Modulationand Demodulation ; QAM
The UWB SAR quadrature demodulation receiver reaches very high performance within 300MHz bandwidth: the amplitude ripple is 1.5 dB and the IQ imbalance is 0.2dB/2°.
设计实现了300MHz带宽超宽带接收机的正交解调部分。 带内幅度波纹为1.5dB，I、Q幅相不平衡度为0.2dB／2°。
参考来源 - 超宽带收发系统设计与调试The design process of the multi-beamforming is presented detailedly, which include the orthogonal demodulation and resample technology, the schema of phase shift beamforming, and the effect of the frequency shift and the phase disturbance.
阐明了正交波束形成中的高频数字正交解调、低频抽取的采样方法，设计了数字相移的多波束形成方案。
参考来源 - 目标定向及多波束实现The digital signal processing technique mainly involved in the new method inclue DFT algorithm ,FM quadrature demodulation algorithm ,FIR digital filter and the improved Goertzel algorithm.
新方案主要涉及的数字信号处理方法有DFT算法、FM正交解调算法、FIR数字滤波器和改进的Goertzel算法。
参考来源 - DVOR监控系统数字化的软件仿真及硬件实现·2,447,543篇论文数据，部分数据来源于NoteExpress
对MS K信号，分析了正交解调和差分解调算法。
Analyze the quadrature demodulation and difference demodulation algorithm of MSK signal.
对脉冲体制的超宽带正交解调接收机幅相误差模型进行了深入分析。
The error model in UWB impulse quadrature demodulation receiver has been analyzed.
阐明了MRI系统中所使用的正交调制、正交解调、正交激发和正交接收的概念。
It is clearly clarified the conceptions of quadrature modulation, quadrature exciting, quadrature receiving, and quadrature demodulation in the MRI system.
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