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- second echo signal 第二回波信号
- It can also simulate the speed about distance changing and adjust the pulse width of echo signal. 此外，本目标回波距离处理器还可以仿真距离变化速率，调节回波脉冲的宽度。
- SPGA algorithm compensates the envelope and phase of the echo signal which has not be corrected range migration. SPGA算法利用估计得到的侧摆对距离徙动校正前的回波数据进行包络和相位补偿。
- Describes a distance simulator of echo signal used in radio frequency simulation system. 描述了射频仿真系统中使用的目标回波距离处理器。
- Because the truths of the echo signal simulation are directly influenced by the accuracy of the simulation algorithms. 模拟算法的优劣直接影响着模拟产生的回波信号的真实性。
- Radio frequency simulation system(RFSS) is mainly used to simulate echo signal of radio frequency target in laboratory. 射频仿真系统(RFSS)主要是用在实验室里模拟空中射频目标信号。
- A way to measuring the vector miss distance using echo signal from Multiple Frequency CW-Tracking Radar is described in this paper. 本文详细介绍了利用多频连续波测量雷达回波信号进行脱靶量测量的方法。
- Miss distance parameters are estimated by matching pursuit algorithm to search the basis function which best matches the echo signal. 通过匹配追踪算法寻找与回波信号最匹配的基函数来确定脱靶量参数。
- Adaptive MTI techniques used in radar signal processing,that is,moving clutter suppression to radar echo signal is discussed. 讨论雷达信号处理中的自适应动目标显示技术,即雷达回波信号中的运动杂波抑制问题。
- The imaging fundamental of SAR was expatiated and the raw echo signal model of complex three-dimensional ground object target was established. 阐述了复杂三维地物目标模型的建立方法,分析了回波信号的结构并且讨论了成像仿真参数。
- Based on non-Gaussian AR-model, parametric bi-spectrum method is used to extrapolate radar echo signal; then the ISAR imaging has been done. 利用双谱分析方法,用非高斯AR模型对雷达目标回波信号进行参数化双谱估计,并在此基础上对数据进行外推处理,然后对数据进行ISAR成像。
- An ocean echo signal simulation system for verification and calibration of FMICW high frequency ground wave radar is presented in this paper. 该文给出一种调频中断连续波(FMICW)高频地波海况监测雷达的仿真模拟检验系统。
- Physical characteristics of terrestrial surface targets are retrieved by information contained in laser pulse echo signal with laser altimeter. 摘要激光测高仪依靠回波信号包含的信息来反演地面目标的物理特性，因此必须保持回波信号的保真度和高信噪比。
- It is defined as the power of the original echo over the power of the residual echo signal after cancellation in dB unit. 它被定义为原始的回声越过残余回声信号后被消除的分贝动力。
- The result shows that in order to obtain the strong echo signal,a suitable selection of the ultrasonic transducer operating frequency is necessary. 由此表明,选择合适的声发射换能器,有助于提高液位检测回波信号的强度。
- Conventional methods based on the intensity of target echo signal will result in high false alarming rate if mine-like object such as rock laying on the seafloor. 传统的基于目标回波信号强度的检测方法在海底存在岩石等类似于水雷等人造目标的情况下，常会导致较高的虚警率。
- It is convenient to measure the RCS, and the antenna pattern by this system having resolutions of both the turning angle of 1/36 degree and the echo signal voltage of 2.5mV. 该系统具有1/36度的转角分辨能力和2.;5mV的回波电压分辨能力;适用于目标RCS、天线方向性图等测量。
- In LFMCW radars,the echo signal of moving target with acceleration has Doppler aberration which will cause the detection performance and parameter estimation loss of target. 在线性调频连续波(LFMCW)雷达中,加速度运动目标回波存在多普勒频谱畸变现象,造成目标检测性能和参数估计精度损失。
- Impact-echo method is a new non-destructive testing technology, the thickness and quality of structure concrete is judged by incepting and analyzing echo signal. 摘要冲击回波法是通过接收、分析在混凝土中传播的回波信号，判断结构混凝土厚度和内部质量的新型无损检测技术。
- As the sample of eraser, ultrasonic echo signal is collected to further prove the relationship between the echo displacements and the changing of temperature in the experiment. 实验中利用橡皮作为样品,采集超声回波信号,进一步验证了回波信号与温度变化之间的关系。
