Frequency modulated continuous wave synthetic aperture radar ( fm - cw sar ) can be miniaturized , and it is fit for light - duty flight platform wonderfully 调频连续波合成孔径雷达可以实现小型化,能非常好地满足轻型飞行平台对成像设备的要求。
In this dissertation , at first , introducing the theory of linear frequency modulated continuous wave radar . the designing of the signal processing hardware platform is basing on the algorithm 在本文中,首先介绍了线性调频雷达的工作原理和相关的理论,根据这些算法要求,来设计信号处理的硬件平台。
Briefly , here are main topics of this dissertation : ( 1 ) the relation between the resolving power of the linear frequency modulated continuous wave radar and the linearity of linear frequency modulation signal 同样,输出数据也可以通过双口ram和pci接口输出。本文的主要工作包括: ( 1 )介绍了线性调频雷达距离分辨力和调频线性度的关系。
It demonstrates the general project of vehicles mutual moving - state detection and control system , which use a frequency modulated continuous wave ( fmcw ) radar with the antenna replaced by a frequency scanning array as the basis of detecting sensor 文中阐述了汽车相互运动状态监控系统的总体方案,使用调频连续波( fmcw )雷达作为探测传感器的基础,并在天线部分作了改进,采用了独立的频率扫描天线。
With the development of the self - oscillating mixer ( som ) theory , the application of som has been studied thoroughly and shows potentials in many fields . this paper introduces the development of som technology in the pass few years at first . then it shows some popular nonlinear techniques used in analyzing the nonlinear circuits . the technology of som can be used in the doppler radar for velocity measurement and in frequency modulated continuous wave ( fmcw ) for distance measurement 本文通过对自振混频技术基本理论的研究,介绍了对非线性电路进行分析的理论方法以及在自振混频器技术分析中的应用,然后对自振混频技术在多普勒测速雷达和调频连续波( fmcw )雷达上的应用进行了研究。
Linear frequency modulated continuous wave ( lfmcw ) radar has many characteristics of simple structure , small volume , light weight , low cost , low transmitter peak power , short wavelength , thus it is especially suitable to be used in radar image , research of target characteristic , end control and guide , battlefield spy , scene watch etc . and more people in the world interested in it , it will have a wide prospect 线性调频雷达具有结构简单、体积小、重量轻、造价低、发射峰值功率低、波长短等一系列优点,特别适合于雷达成像、目标特性研究、末制导、战场侦察和场面监视等领域,目前已受到国内外的广泛重视与研究,应用前景十分诱人。
The pseudorandom codes have a good autocorrelation of double - values . in recent years , to solve the problems of anti - interference and the ambiguity of range and velocity , a lot of countries do much research to change the waveform of radar signal . the most important improve is to use symmetrical pulses to interrupt frequency modulated continuous wave ( fmpcw ) 早期的fmicw采用伪码序列截断,伪随机码具有良好的双值自相关特性,其中最常用的是m序列截断的fmicw 。近年来,为了解决抗干扰和测距、测速模糊问题,许多国家已对雷达信号波形的改进进行了研究。
Then to meet the problem of the separate between receiving and transmitting for single - station radar system in continuous wave principle , we introduced frequency modulated interrupted continuous wave ( fmicw ) . in early days , the pseudorandom codes were often used in fmicw . usually m - sequence is used to intertupt frequency modulated continuous wave 之后,为了解决连续波体制下,单站收发共址的雷达系统的收发隔离问题,又普遍采用了截断的线性调频连续波信号形式,叫做线性调频中断连续波信号( fmicw ) 。