MQAM Quadrature Amplitude Modulation 多进制正交幅度调制 quadrature component modulation 正交调制 multilevel quadrature amplitude modulation 多电平正交调幅 ..
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正交调制器 quadrature modulator
多进制双正交调制 MBOK
频移交错正交调制 FSOQ
正交调制载波 quadrature-modulated carrier
正交幅度调制 Quadrature amplitude modulation ; QAM ; MQAM ; Quadrature AM
正交调制串音 quadrature cross talk
平衡正交调制 balanced quadrature modulation
正交调制彩色信号 quadrature modulated chrominance signal
相位正交调制 phase quadrature modulation
The beam forming algorithm realizes random phase shifting via orthogonal modulation. The Hilbert filter was used to be the 90 degree phase shifter.
介绍的波束形成算法通过正交调制法实现单频载波信号的任意相移,并采用Hilbert滤波器实现了90°移相器。
参考来源 - 一种宽带数字相移波束形成算法及其DSP软件实现With the increasing demand of mobile communication equipment that is getting miniaturization,low dissipation and multifunction,DQUC(direct quadrature up-conversion) which is based on quadrature modulation is developed rapidly.
随着移动通信设备小型化、低功耗、多功能需求的不断增加,基于正交调制的直接正交上变频DQUC技术得以迅速发展。
参考来源 - S波段微型直接变频发射机In transmitters hardware design part, design the baseband DAC conversion circuit, orthogonal modulation circuit, achieved on the base-band signal modulation; design the transmitted power control circuits to command RF frequency power.
设计了基带的DAC、ADC转换电路,在发射机电路中,设计了正交调制电路,实现了对基带信号的调制;设计了发射机功率增益控制电路,实现对发射信号功率的控制。
参考来源 - UHF频段RFID读写器的实现·2,447,543篇论文数据，部分数据来源于NoteExpress
同时，由于采用了数字正交调制，从而有效地提高了镜频抑制。
At the same time, we refrain mirror frequency effectively with the method of digital quadrature modulation (DQM).
正交调制的目的是产生单边带RF激发脉冲，以避免激发镜像层面。
The purpose of quadrature modulation is to generate the SSB RF exciting pulse that avoids exciting it's mirror slice.
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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