调频测距,frequency modulation ranging
1)frequency modulation ranging调频测距
英文短句/例句
1.Performance Analysis of Frequency Modulation Ranging for High-PRF PD Radar脉冲多普勒雷达的高重频调频测距性能分析
2.The Research of RFID Tag Orientation Based on Frequency Modulated Continuous Wave Ranging基于调频连续波测距的RFID标签定位研究
3.Fault Prediction of Variable Frequency Speed Regulation Based on Non-isometric Grey Forecast Model基于不等距灰预测模型的变频调速设备故障预测
4.FM-FM system调频-调频遥测系统
5.Simulation of Saw-tooth Wave Frequency Modulated Radio Ranging Fuze Under Autodyne System自差体制锯齿波调频定距引信的仿真
6.Study on Multiple Frequency CW Ranging Method Based Quadric Difference Frequency基于二次差频的多频连续波测距方法研究
7.Design and analysis of Frequency Synthesizer for Frequency Variation Laser Ranging变频法激光测距频率合成器的设计与分析
8.VHF omni range distance measuring equipment甚高频全向信标测距设备
9.directional low-frequency analyzer and ranging定向低频分析与测距浮标
10.Disquisition on Multipath Mitigation Algorithm in Spread-Spectrum Ranging Systems;扩频测距系统中的多径消除算法研究
11.The Application of the Sequence Detection Method in over the Horizon Radar;序列检测法在高频超视距雷达的应用
12.Multiuser Carrier Frequency Offset Estimation for WiMAX Initial Ranging Based on OFDMAWiMAX OFDMA初始测距中的多用户频偏估计
13.Influence of impedance mismatch of channel equipment on the ranging system信道设备阻抗失配对扩频测距的影响
14.A STUDY ON METHODS AND INSTRUMENTS OF CALIBRATING FINE FREQUENCY OF EDM光电测距仪精测尺频率校准方法与仪器的研究
15.Frequency measurement method design and implementation of microwave ranger finder微波测距仪频率测量的方法设计与实现
16.Detection Range Improvement of Two Channel FMCW Radar线性调频连续波雷达双通道距离改进系统
17.This paper analyzes the technology of frequency agility and FM fixed-distance in the field of radio fuze.本文研究了无线电引信中的频率捷变调频定距技术。
18.Doppler very high frequency omnidirectional radio range and distance measuring equipment多普勒甚高频全向无线电信标及测距设备
相关短句/例句
LFM ranging线性调频测距
3)FM range measuring system调频测距装置
4)FM-CW laser ranging调频连续波测距
5)MMW measuring distance调频连续波雷达测距
6)FMCW ranging radar调频连续波测距雷达
延伸阅读
调频-调频遥测系统采用调频-调频二重调制方式的频分制遥测系统,简称FM-FM遥测系统，属于模拟式遥测系统。FM-FM遥测系统的抗干扰能力强，遥测精度也比较容易得到保证。模拟式遥测系统大都采用这一类系统。下图为 FM-FM遥测系统的框图。各路被测量经变换器变换成电压信号后去控制各路副载波振荡器。副载波振荡器一般采用压控振荡器（即电压控制的振荡器），其振荡频率正比于控制电压,这样就实现了第一次调频。为了防止路际干扰,各路已调副载波先通过低通滤波器，滤去高次谐波，再送到相加放大器形成多路信号，并通过信道调制器对载波调频，这样就实现了第二次调频。已调频的载波由发射天线发送出去。接收端收到遥测信号后先通过解调器解调出多路信号，再送往各分路的带通滤波器，即分路滤波器，把各路已调副载波分离开来。分离出来的已调副载波送到相应的分路解调器，进行第二次解调，就可以得到所传送的模拟信号。美国对 FM-FM遥测系统已经实现了标准化、模块化、系列化。广泛应用模拟集成电路制成标准部件，提高了系统的可靠性和适应性。
