range ambiguity meaning in Chinese
距离模糊
轮廓模糊
Examples
- Range ambiguities and phase wrapping are the two main problems during acoustic ranging , direction finding , tracking and positioning . we mainly discuss range ambiguities
距离模糊和相位模糊是水声测距、测向、跟踪定位中的两大模糊问题，抗距离模糊是本文研究的主要内容。 - On the other hand , we give the condition of correctly solving range ambiguity and performance calculating formula of for stagger frequency difference ; condition of constraint for deciding stagger parameter value ; range " s analysis result for targets with multiple scattering centers or low altitude . this part includes chapter 2 , 3 , 4 , 5
另外，我们还给出了参差比相测距正确解模糊的条件以及参差测距下的性能公式；提出了决定参差参数取值的约束条件；给出了多散射中心目标和低空目标的多频连续波测距性能的结论。 - Main system parameters " requirements are evaluated and the bistatic sar radar equation is derived . this dissertation also analyzed the range ambiguity caused by ill geometric configuration arrangements for the transmitter and receiver when the airplane platforms fly on the opposite side of the mapping swath , and achieved the requirements to avoid this ambiguity
论文分析了主要系统参数之间的约束关系,推导了双基地sar的雷达方程,并给出了收、发平台位于观测场景两侧时避免测绘带内有用回波信号本身产生混叠的条件,为今后进行系统的分析与设计提供了重要的理论依据。 - By using the processing method of sliding time window , the problem of the periodicity range ambiguity is solved . meanwhile , the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method . then , the pulse width parameter which is the most important in the parameters of fmicw is analyzed . the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing . at last this thesis introduces the different signal processing methods of fmpcw and fmicw
同时利用该方法解决了fmpcw信号的由于目标距离超过雷达的最大单值测距范围而引起的距离模糊问题。然后对fmicw波形参数中最为重要的脉冲宽度进行了分析,给出了更为严格的约束条件,保证了信号处理后距离谱峰值的唯一性。最后,分别介绍了fmpcw和fmicw信号的不同处理方式,并对两者不同的时域滤波性能进行了比较,并对二者的差异进行了分析。 - Based on the analysis of the beat frequency signal , the expression of the beat frequency phase is deduced . the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods . by using two - dimensional fft , the range and velocity information of target is got out from the echo . according to the periodicity range ambiguity of symmetrical pulses in fmpcw , the processing method of sliding time window is used
通过对差频信号进行的分析,得出了差频相位的具体表达式,表现出了要检测的各量的物理意义,对检测的方法提供了理论依据。利用二维fft方法,可以有效地提取回波中目标的距离与速度信息。对于fmpcw信号由于均匀脉冲产生的周期性距离模糊的问题,采取时间波门的处理方法。