Owing to its close relation with radar echo signals, little jamming energy is lost.
由于与雷达回波密切相关，所以经脉压处理后，干扰能量损失不大。
This method fully USES the dynamic information of echo signals and has no strict l...
此方法充分利用了回波信号的动态信息，对发射信号无严格限制。
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。
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。
The effects of both rotation and translational motion of dipoles on echo signals are taken into account in this paper.
本文同时考虑了偶极子的平动和转动对偶极子回波信号的影响。
The pulse Doppler radar simulator discussed is used to provide radar echo signals and checkout the performance of radar in an open condition.
本文讨论的弹载脉冲多普勒雷达目标模拟器主要是在外场静态联试时为雷达提供模拟动态目标回波信号，以检查其截获跟踪性能。
The characteristics of the test signals were analyzed and weak defect echo signals were successfully extracted by cut-off frequency technique.
分析了检测信号的特征，并采用截止频率法成功地提取了微弱的缺陷回波信号。
Using the actual collected radar echo signals, we analyze the ground clutter suppression performance of the adaptive Gaussian frequency filter.
针对实际采集的雷达回波信号，分析了自适应高斯频域滤波器的地物杂波抑制性能。
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。
The inventive diagnostic apparatus is adapted for simultaneous acquisition of ultrasonic echo signals and surface enhanced Raman spectroscopic signals.
本发明的诊断设备适于同时采集超声回波信号和表面增强拉曼光谱 信号。
By interaction between ultrasonic waves and elastic medium, it carries much information of material, which is received in the form of ultrasonic echo signals.
它是利用超声换能器的振动产生的超声波与弹性介质相互作用，从而携带了有关材料组织性能的信息，这种信息随同超声回波信号被接收到。
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。
By interaction between ultrasonic waves and elastic medium, it has carried much information of material, which are received in the form of ultrasonic echo signals.
它是利用超声换能器的振动产生的超声波与弹性介质相互作用，从而携带大量有关材料性能的信息，这种信息以超声回波信号的形式被接收到。
The video signal model for synthetic aperture radar(SAR) is set up, and a method to generate echo signals for SAR using AWG520 arbitrary waveform generator is presented.
建立了合成孔径雷达回波视频信号模型，提出了一种用AWG520任意波形发生器生成SAR回波视频信号的方法，并用这种方法模拟了SAR实时成像的回波视频信号。
Methods in the computer simulation of the ultrasound color flow imaging, flow signals are obtained by accumulating all the echo signals of scatterers in the imaging area.
方法超声彩色血流成像计算机仿真中，血流信号是对成像区间内所有点散射体的回波信号累加而得到的。
Since the estimated echo signals are directly derived from the binary data code, the amount of manipulation is reduced by a factor of 3-5 compared with conventional manipulation.
由于回波信号的估值直接利用二进数据码合成，使运算量比传统的算法减少了3 ~5倍。
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；
Fixing the spectrum width of the weather echo signals, we change theirs mean Doppler frequency and filter them using regression filter. After filtering, we analyze the attenuation of them.
在天气回波信号谱宽固定的情况下，通过改变天气回波信号的平均多普勒频率，分析了回归滤波器对它的衰减情况。
The design principle of radar intermediate-frequency echo is introduced; different kinds of expression of echo signals are deduced, and 4 categories of wave of target cross section are modeled.
介绍了雷达中频回波信号的设计原理，推导了不同波形种类的回波信号表达式，并为目标建立了4种截面积起伏模型。
It is often misjudged the flaw echo in ultrasonic examination that the echo signals produced by sound field property and geometrical shape of the component examined according to sound field theory.
超声探伤中，由于声场特性、件几何形状的影响，所产生的各种回波信号常常被误判为缺陷信号。
Laser altimeter not only can precisely measure the target distance, but also extract characteristic information, such as inclination, roughness etc. from its echo signals. So they are applied widely.
激光测高仪不仅可以精确测量目标的距离，还能够从回波信号中提取倾斜度、粗糙度等特征信息，应用十分广泛。
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。
Measured and analyzed the beat signal of LFMCW and simulated echo of object signals by sampling, computer processing, achieved satisfying result.
通过采样和计算机处理，完成了LFMCW本振信号和目标回波模拟信号的差拍信号的测试与分析，得到了满意的结果。
These signals provide an important reference of the gain of antenna, the time reference, the phase reference and the frequency of carrier wave for generating stimulant echo signal.
这些信号分别为模拟回波信号的生成提供了天线增益大小、时间基准、相位基准和载波频率大小等重要的参考信息。
Using the characteristics of pulse echo singal during the probe adjustment, a relation model between angle of incidence and time-domain eigenvalue of reflect wave signals was proposed.
分析了探头调整时脉冲回波信号的变化特点，在实验的基础上构建了声束入射角与表面波时域特征值间的关系模型。
Results: The patients with pelvic varicosis showed network like, non echo areas and plexiform or color ball shaped blood flow signals which were not found in control group.
结果：盆腔静脉曲张症患者盆腔内可见网络样无回声区及丛状或“彩球”样彩色血流信号，正常组未见上述改变。
Multi channel acoustic echo cancellation (AEC) systems suffer from the non uniqueness problem of the adaptive identification solution because of the correlation of the input signals.
多路回波消除问题的本质难点是由于多路输入信号之间的强相关性而导致的自适应滤波器解不唯一的问题。
In the multi-channel echo cancellation, the nonlinear pre-processing is always used to overcome the non-convergence of the filter caused by the strong correlation of input signals.
非线性预处理是解决多通路回波消除中因输入信号间的强相关性而引起的滤波器不收敛的有效方法。
Results:In both of HT and SHT, the thyroids were enlarged with rough echo and abundent flow signals.
结果：甲亢组与亚甲低组甲状腺体积均不同程度增大，内部回声增粗，甲状腺内血流信号明显增多；
Results:In both of HT and SHT, the thyroids were enlarged with rough echo and abundent flow signals.
结果：甲亢组与亚甲低组甲状腺体积均不同程度增大，内部回声增粗，甲状腺内血流信号明显增多；
应用推荐