回波脉冲 meaning in English
echo impulse
echo pulses
return pulse
Examples
- We studied the characteristic of the signals and processing methods . spatially variant apodization algorithm is introduced to significantly reduce sidelobe levels without degrading mainlobe resolution
用sva的方法对回波信号加权,在有效抑制isar回波脉冲包络旁瓣电平的同时提高信号的主瓣分辨率。 - Ultrasonic bio - instrumentation has several display modes used in medicinal field now , such as b - mode and m - mode , etc . b - mode uses the modulated brightness to represent the amplitudes of ultrasonic echoes , and the coordinates in the formed profiles correspond to positions of ultrasonic beam scans one by one
B型显示是用亮度调制来显示回波脉冲幅度，显示的横轴和纵轴与声束扫描的位置一一对应，形成超声切面图像。 - Dsp56f805 samples the ultrasonic pulse coming back from the target , then measures the distance and shows it on led . tms320vc5509a is accomplished the detecting speed and the main control of the radar system , is 16 fixed dsp with high performance and low power produced by ti company . dsp5509a samples the wave coming from t / r module , then measures the target ’ s speed and send this information to the assistant control chip - p89v51 based on boost c51 core mcs produced by philips company , which controls the lcd
测距雷达系统的控制和信号处理的核心芯片是motorola公司的dsp型16位单片机56f805 ,由它对超声波回波脉冲进行ad采样后,计算目标距离并在七段数码管上显示。测速雷达系统中信号处理的核心芯片是ti公司的超低功耗、高性能的16位定点dsp ? ? tms320vc5509a ,由它对收发组件输出的多普勒回波进行采样,计算出目标运动速度后,送给辅助控制芯片? ?飞利浦公司生产的基于c51内核的增强型单片机p89v51 ,并且在液晶显示器上显示速度信息。 - To solve this problem , quick range measurement technology was researched based on the method of propagation delay and working principle of cpld . a time measurement circuit with an accuracy of ? 0 . 2m was designed and accomplished . it could finish the whole measurement process in 80ns after the bounced pulse was received
针对该问题，基于传递延时插入法和cpld的工作原理，对快速测距技术进行了研究，研制了一种能实现收到回波脉冲后80ns内完成测距，测距精度0 . 2m的计时电路，并将该电路集成于一片可编程逻辑器件中，减小了电路面积和功耗，增强了抗干扰能力。