镜像频率

1
[电子] image frequency
...择，为了避免所要讯号频道在降频时受到其他的频道的干扰，降频混波器的线性度很重要，此外，对于镜像频率 （image frequency）的杂讯抑制也是降频混波器设计的重要的考量。
2
image frequencies
... ideal filter 理想滤波器 image frequencies 镜像频率 image ladder 镜像阶梯 ...

1
然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏，从而达到应用的目的。
Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.
2
在系统设计方面，选用2fsk调制方式，并从镜像频率的抑制等方面考虑，选择了合适的跳频频带。
The system chooses 2fsk modulation manner and appropriate hopping bandwidth from the aspect of mirror frequency restraining.
3
微带交指带通滤波器具有结构紧凑、易于批量生产的特点，适用于TVRO超外差接收机中作为镜像频率抑制滤波器。
Microstrip interdigital band-pass filters are compact and easy for batch manufacturing. They are suitable for applications in TVRO superheterodyne receivers as image-reject filters.

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