Narrow band intermediate frequency digital receiver has been widely used in radar EW reconnaissance. At present, the high speed signal processing is the key point of its researching.
窄带中频数字接收机在雷达对抗侦察中得到了广泛应用，其高速信号处理技术是目前研究的重点。
Each of them is composed of high frequency amplifier, intermediate frequency amplifier and sampling, digital phase uprightness intersector, DDS and the S band signal inspirator for the transmitter.
接收机的每个通道都由高频放大器、中频放大、中频采样、数字正交器组成，另外还有DDS信号产生和频率激励源用来形成雷达发射机所需的S波段脉冲调制激励信号。
The system adopts superheterodyne architecture. It consists of intermediate frequency (IF) band and radio frequency (RF) band hardware design.
该收发信机采用超外差结构，主要包括中频部分的硬件设计以及射频部分的硬件设计。
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