radio-safety signal

The radio direction finding is widely used in military and civilian fields and it can locate the wireless signal, track the signal, finally the azimuth information in which we are interested is obtained in real time.

无线电测向被广泛应用于军事和民用领域，能实现对无线信号定位，进而还可以进行跟踪，实时获取感兴趣目标的方位信息。

the first transatlantic radio signal.

首个跨越大西洋的无线电信号

…the first transatlantic radio signal.

首个跨越大西洋的无线电信号

The model includes satellite signal and interference signal, antenna array, radio frequency processing and signal processing, etc. The dissertation studies the technological data and performance of every model by theoretical analysis and simulating.

模型包括了卫星信号和干扰信号模型、天线模型、射频处理模型、信号处理模型等。通过理论分析和仿真，研究了各模型的指标和性能。

High quality television display screen used to view a TV signal in its unmodulated state. ( Modulate-to vary the amplitude, frequency or phase of radio or television).

用于收看未经压缩的电视信号的高质量屏幕，以监控图像质量。

And if you put radio telescope there you can get a radio signal.

如果你用射电望远镜的话你就能得到射电信号.

The scanner emits a low frequency radio signal, activating the microchip.

扫描仪会发出一些低周波的无线电信号, 来激活微芯片.

The process that antenna array collecting thermal radiation and transforming thermal radiation signal into radio frequency signal was simulated. Mechanical scan of antenna array was accomplished by rotation transform to form two-dimensional image with linear array.

实现了天线阵列接收热辐射并将热辐射信号转化为射频信号和机械扫描一维天线阵列以达到二维成像效果仿真。

The basic structure and working principle of radio-based cab signal wayside control system were described.

介绍了无线机车信号地面控制设备的结构和工作原理，为了保证其正常运行，采用双机热备方式。

A radio signal was sent to the spacecraft.

向宇宙飞船发出了无线电信号。