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- Radar IF Signal Sampling and Engineering Implementation of Digital Coherent Detection 雷达中频信号采样及数字相干检波的工程实现
- radar IF signal 雷达中频信号
- At last,an example of IF unit of radar echo generator system based on DDS is presented.This signal unit can generate radar IF echoes including general pulse,LFM,NLFM,PSK. 最后给出了一个基于DDS的雷达多目标模拟系统中频单元的设计实例,该单元可以灵活生成包括常规脉冲、线性调频、非线性调频、相位编码在内的雷达中频回波信号,为被试雷达提供较为全面的测试环境。
- A novel DGS lowpass filter is used to purify IF signal. 中频引出通过新颖的DGS低通滤波器滤波后输出。
- The receiver quantitates IF signal by using band-pass sampling. 该接收机利用带通采样对输入的中频信号进行数字化处理。
- IF signal not pre-distorted, the variable capacity CV1 enables to correct the inclination of the transmitted pass band. 以未预失真条件信号、这个同样的标准，可变电容CV1赋予权利去校正已传输通道波段的倾斜度。
- The Up converter receives at its input the IF signal coming from the modulator and converts it on the RF transmission channel. 上转换器在它的来自调节器的输入IF信号上接收和在射频传输频道上转换。
- Extracting the in pulse characters based on direct sampling from IF signal and quadrature coherent detection is proposed. 讨论了利用中频直接采样相干检波技术实现信号脉内特征的提取,仿真结果证明了该技术的可行性。
- A New Method of IF Signal Sampling in Quasi CW Radar 一种准连续波雷达中频采样的新方法
- It serves as the signal generator in a transmitter and in a receiver, and the local oscillator is used together with a mixer to convert the received RF signal to an IF signal. 它在传输器跟接收器中是作为标准的讯号产生器，本地震荡器通常是跟混波器一起使用将射频讯号转换到中频。
- Be prepared to stop if signalled to do so and give way to emergency vehicles. 随时准备指示停车,并让路给紧急服务车辆。
- The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
- They picked up the yacht on their radar screen. 他们在雷达屏上看到了那艘游艇。
- You can do it this way if you care to. 如果你乐意的话，可以这样做。
- A simple test will show if this is real gold. 简单的试验就能证明这是否是真金。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- If I had my way, I'd go to the movies tonight. 假如我做得到的话，我今晚会去看电影。
- If we all muck in we'll soon finish the job. 如果我们大家都动手，一会儿就可以干完这件事。
- The radar scanned the sky for enemy planes. 雷达密切监视天空，搜索敌机。
- If you go to a private hospital you must pay. 如果你去一家私立医院就诊，你得付费。
