The threshold algorithm of the target detection is often used to detect target echo signals.
目标检测的阈值法经常用于检测目标的回波信号。
The method of radar target waveform feature extraction is studied based on non coherent radar target echo.
研究了一种基于非相参雷达目标回波的特征提取算法。
Finally, the results of the simulated target echo signals passing through a compressed filter are analyzed.
最后分析了模拟目标回波经脉压滤波器的处理结果。
Then discussing the phase information and Doppler characteristic of target echo wave in the pulse Doppler phase radar.
并且讨论了在脉冲多普勒相参体制雷达下目标回波的相位信息以及目标信号的多普勒谱特性。
A method extracting multiple target feature by the eigenvalues decomposition of target echo autocorrelation matrix is presented.
提出了基于目标回波自相关矩阵本征值分解提取多目标特征的新方法。
An accurate and effective sonar target echo model is a basis of detecting and recognizing sonar target, especially small scale target.
准确、有效的目标回波模型是声纳目标，特别是小尺度目标探测与识别的基础。
This paper realize the radar echo signal analysis and modeling from three aspects: contain the target echo, sea clutter, rain clutter and noise.
着重从目标回波、海杂波、噪声三个方面对雷达回波信号进行了分析和建模。
Automatic recognition of target number is realized through processing of target echo, and some practical results is given at end of this article.
通过对目标回波的处理，实现了目标架数的自动识别。最后给出了它们在实际应用中的结果。
On this basis, we created simulation models for echo signals of SAR, analyzed several typical errors and got the point target echo with these errors.
在此基础上，建立了SAR回波信号的仿真模型，并针对几种典型的误差形式进行了进一步的分析，得到了带有误差的点目标回波模型。
Besides, the target echo signal is often weak with strong noise, so data acquisition (DAQ) card should sustain high sampling frequency and resolution.
由于目标回波的低信杂比，需要采集卡具有较高的采样率和分辨率。
The research would be summarized as follows:(1) MMWLFMCW radar target echo signal expressions are derived in the time and frequency domain respectively.
本文的主要内容包括以下几个方面：（1）推导了毫米波LFMCW雷达目标回波信号在时域和频域上的表达式；
Radar target simulator is an equipment used to generate pseudo target echo signals and has found wide application in development, maintenance and use of radar.
雷达目标模拟器是一种用来产生模拟的目标回波信号的装置，在雷达设备的研究、维护和使用等领域有广泛的用途。
Aiming at target echo signals detection, long-time coherent accumulation processing is adopted. Simulation results show that the method improves the power of target echo signals.
针对目标回波检测，本文采用了长时间相干积累的方法，仿真结果表明该方法提高了目标回波积累峰值；
The target echo of passive radar based on FM signal has the characteristics of low SCR and narrow band. Only the receiver with large dynamic range can receive the weak echo signal.
基于FM信号的无源雷达目标回波信号信杂比低，频带窄，只有开发大动态范围的接收机才有可能接收到微弱的目标散射信号。
A method of underwater target dimension identification was proposed by special bearing distribution data of body target echo based on identification theory of a target bearing method.
阐述基于目标方位走向法的目标识别理论，提出利用体目标回波的空间方位分布信息识别水下目标尺度信息的方法。
Detection of echo energy could reveal the presence of a target and its location, size, shape, density and intensity.
检测回波能量就可获知目标物的存在、位置、大小、形状、浓度及强度。
The idea that rigorous analysis of the right policies happened to echo the target date seems, at best, trivially condescending.
对适当的政策的全面分析，以制定达成目标的时间似乎充其量只是无关痛痒的谦辞。
Finally, the method using the characteristics of the echo stretching to retrieve the target inclination Angle was brought forward.
最后提出了利用激光遥感回波脉宽展宽特性反演目标倾斜角的方法。
The normal sonar system rotates its beam, either continuously or under the operator's control, and the position of maximum response to a particular echo is taken as the bearing of the target.
普通声纳系统旋转它的电波，可连续或根据运营商的控制，以及对特定回波的最大响应状态被记录为与目标间的联系。
In the thesis, the video echo of the airborne PD radar was simulated. The simulated echoes include the signals of the target, the ground clutter and the noise.
本文研究的雷达视频回波信号模拟与仿真是针对机载下视脉冲多普勒雷达，包括目标信号、地杂波信号和噪声信号的模拟与仿真。
The inverse synthetic aperture radar (ISAR) echo signal model of fast-moving target and the effect of target fast-moving on ISAR signal processing were analyzed.
分析了高速运动目标的逆合成孔径雷达（ISAR）回波信号模型和目标高速运动对ISAR信号处理的影响。
Theprinciples of the laser active reconnaissance are explained via the comparison of the echo signal. target ranging isrealized by adopting the principle the pulse laser ranging.
通过对比研究激光对漫反射大目标、小目标和“猫眼”光学镜头的回波信号，给出激光主动侦察原理：对目标的距离测量应用脉冲激光测距原理实现；
The results show that the fading memory filter makes the position of target in echo images continuous by introducing the influence of old data on image update.
结果表明，渐消记忆滤波器通过引入旧数据对图像更新的影响，使得回波图像中目标位置的变化具有连续性。
In processing of array signal, Direction of Arrival (DOA) of target can be obtained by extracting spatial frequency of echo.
在阵列信号处理中，提取回波信号中的空间频率，可以得到目标的方位信息。
In high range resolution conditions, the migration of moving target causes the migration of echo envelop within multicycle integration time and brings the decline of detection performance.
在高分辨条件下，多周期积累时间内目标的运动会造成回波包络的跨单元走动，而距离走动带来了检测性能的下降。
Differences of echo characteristic between impulse radar and continuous wave radar are analyzed, and the potential of UWB impulse for Super-Low-Altitude target-detection is remarked.
分析了超宽带冲激脉冲雷达与连续波雷达的不同的回波特性，指出冲激脉冲雷达对超低空目标探测的潜在优势。
Obtaining radar echo of high-speed dynamic space target is the basis of research on space targets' electromagnetic characteristics, space targets exploration and recognition.
获取空间高速动态目标的宽带回波数据是进行空间目标电磁特性研究，开展空间目标探测与识别的基础。
Obtaining radar echo of high-speed dynamic space target is the basis of research on space targets' electromagnetic characteristics, space targets exploration and recognition.
获取空间高速动态目标的宽带回波数据是进行空间目标电磁特性研究，开展空间目标探测与识别的基础。
应用推荐