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。
If the signal frequency to be measured is low, wide strobe gate is required for high measurement precision.
当被测信号频率较低时,需要很宽的选通门才能得到较高的测量精度。
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,由于对目标速度测量精度的要求很高,因此目标多普勒频率测量电路的设计也具有比较重要的地位。
For high frequency, or low amplitude measurement, probe ground shall be connected to appropriate points in the circuit under test.
对于高频或低幅值测量﹐探头的地应接到测试电路中的适当位置。
This paper is dedicated to discuss the definition, measurement and control method of High Frequency leakage current.
本文旨在对于高频漏电流的界定、检测及控制方法进行探讨。
Results The analysis to the data demonstrated high frequency in intravenous transfusion, measurement of life signs, morning and evening nursing, muscular injection and oral medication.
结果静脉输液、生命体征测量、晨晚间护理、肌内注射及口服给药操作频率较高;
This paper introduced the design and development of silicon piezoresistive high frequency dynamic pressure sensor which used in the measurement of shock wave superpressure.
阐述了用于冲击波超压测量的压阻式高频动态压力传感器的设计与开发。
In order to achieve high measurement accuracy a frequency stabilizing device is used.
为提高该激光测量系统的精度还采用了激光的稳频措施。
Methods 50 patients received standard pure - tone and extended high frequency audiometry for hearing measurement.
方法对50例压力性鼓膜穿孔患者的常频和扩展高频测听的听阈结果进行分析。
The macroscopic measurement of high-frequency linear transport process does not destroy this interference effect.
高频线性输运系数的宏观测量不会破坏这种相位关联。
In order to achieve high accurate measurement of object's velocity, a laser Doppler velocity radar system is established and the frequency estimation algorithm is investigated.
为了实现高准确的测量对象的速度,激光多普勒测速雷达系统建立和频率估计算法研究。
The system can be used to measure the voltage responsivity and detectivity of infrared detector at different modulation frequency with rapid speed and high accuracy, it meets the need of measurement.
该系统可以自动测试不同调制频率下红外探测器的电压响应率和探测率,能够快速准确地完成测试任务,满足了测试要求。
The rule of the disturbance of high frequency sealer to CATV was compresively studied by means of theoretical analysis, data measurement, and spot observation.
采用理论分析、数据测试和现场考察等方法对高频机干扰有线电视的规律进行探讨。
The mix-lookin detection technique for high frequency signal measurement with low frequency look-in amplifier is presented.
本文提出一种利用低频锁相放大器测量高频信号的混频-锁相检测技术。
The DC parameters and measurement results of high-frequency and pulse performances for the BNRT are given Basic circuits with regard to the composite operation of BNRT's are presented.
给出了BNRT的直流参数以及高频和脉冲性能的测量结果,提出了BNRT组合运用的基本电路。
Owing to the limited frequency of the internal high-speed counter of PLC, the peripheral unit of PLC is used for PLC-based frequency measurement of hydraulic turbine governors.
基于可编程序控制器(PLC)的水轮机调速器,受PLC内部高速计数器最高计数频率的限制,频率测量大多通过PLC外部单元来实现。
This paper presents a new method of high accuracy measurement of frequency.
提出一种新的高精度频率测量方法。
The disadvantage of high precision frequency accuracy measurement method available is that an expensive high-resolution time interval counter is needed.
常用高精度校频算法的不足在于需要昂贵的高分辨时间间隔计数器。
The measurement of high frequency dynamical flow in dynamical test of electro-hydraulic proportional valve and electro-hydraulic servo valve is very difficult.
在电液比例阀和电液伺服阀动特性测试中,高频动态流量的测量一直是一个难题。
This paper described a novel method for high -frequency complex permeability measurement.
该文提出了一种新的高频复磁导率的测试方法。
This paper presents a new algorithm used to demodulate high code rate DQPSK telemetry signal by digital frequency measurement.
本文根据高码速率DQPSK遥测信号的特点,介绍了一种通过数字瞬时测频来完成对高码速率DQPSK信号解调的方法。
The characters of this method are high precision, strong anti disturbance capability, less requirements to hardware, especially suitable to low frequency measurement, etc.
本方法具有精度高、抗干扰能力强、硬件少、适用于低频测量等特点。
In this paper, the measurement method of high frequency brightness modulation laser phase for mechanic surface microcosmic appearance is given out.
提出了用高频光强调制、同源频率合成、软件鉴相的激光相位微距测量方法测量表面微观轮廓高度。
Based on the design of high frequency electrosurgical equipment tester, uncertainty evaluation of electronic equipment tester was investigated, taking output power measurement as an example.
利用所设计高频电刀检测仪,并以功率检测为例,探讨电子检定检测仪器测量不确定度评定方法。
The MCU is used for the center controller, achieving high accuracy frequency measurement by methods of multi-cycle synchronism and quantization time-delay.
提出了一种高精度频率测量系统的设计方法,应用单片机技术将多周期同步法和量化时延法相结合,实现了频率的高精度快速测量。
It is very convenience for measurement antenna gain of antenna-receiver system. The method has high precision and it is not accept limit of frequency.
该方法对测量天线——接收机系统的天线增益尤为方便,它的测量精度高,不受频率限制。
Two basic methods of high resolution range measurement applying LFM pulses are introduced: compression in time domain and compression in frequency domain.
介绍了线性调频脉冲信号高分辨测距的两种基本方法:时域压缩测距和频域压缩测距。
In a high frequency induction plasma, We have determined the temperatures of torch as derived from the measurement of Spectral lines and the mode of Boltzmann diagram.
根据光谱线的测量和波兹·曼图解法,我们测量了高频电感等离子体焰炬的温度。
Present paper introduces the method and the result about the measurement of high frequency D voltage with the remddtrablung spectrum.
介绍了用韧致辐射能谱测量高频D电压方法及测量结果。
The ultra-high-frequency(UHF) method has been proved an effective way for the measurement of partial discharge in GIS.
对于GIS局部放电的测量,超高频法是一种较为有效的方法。
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