The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.

在某相位编码毫米波雷达系统中，要求很高的目标速度测量精度，因而目标多普勒频率测量电路的设计比较重要。

youdao

Polar regions have relied upon radar measurements that cannot map the Earth's surface with the same precision as the ICESat laser rangefinder.

此前对于极地地区的卫星调查使用的是雷达测距技术，在对地球表面进行测绘时难以达到此次ICE卫星的激光测距仪的精度。

youdao

Some problems such as the optimizations of transmitting power and detection precision of differential absorption laser radar have been also approached in the paper.

还探讨了微分吸收激光雷达的发射功率的优化和探测精度的优化等问题。

youdao

Included in this latest software release is the new Radar app which utilizes the built-in precision GPS sensors onboard the HUD to provide information on current location, 3D interactive resort maps, and buddy tracking.

ENGADGET: Recon updates its HUD tech, adds new view modes to MOD Live

Today, thanks to radar and interplanetary spacecraft, the astronomical unit is known with a precision of one part in 50 billion.

ECONOMIST: Transits of Venus

Patriot missile components including advanced radar waveguides, microwave devices, high-speed analog to digital converters, microprocessors, precision gimbals for the missile-seeker system, highly miniaturized radio frequency communications, on-board sensors, advanced signal-processing systems.

CENTERFORSECURITYPOLICY: Center's Bryen Blows Whistle on Tech Transfer Fiasco