The absorbent was analysed by SEM and XRD and the magnetic alloy powder-paraffin sample was made a complex permeability measurement in the radar frequency.
对吸收剂进行SEM与XRD分析，并对磁性合金粉体-石蜡样品进行雷达频带复磁导率的测试。
BAE Systems will develop a new radar warning receiver prototype that can identify radio frequency and communications activity in real time.
BAE系统公司将开发一种新型雷达预警接收机原型，该原型能实时识别无线电频率和通信活动。
Ten years later Spencer patents a "radar range" that cooks with high-frequency radio waves; that same year, the Tappan Stove Co. introduces the first home microwave model.
10年后，Spencer申请高频无线电波的专利，同一年，塔班（Tappan）公司推出第一台家用型微波炉。
During a seven-day auction on eBay that ended on May 29, Novocin says he sold four items, including an X-Band Weather Radar Modulator for and a high-frequency radio circuit card for .
最后，经过七天的竞价，诺沃辛卖出了四件零件，包括以500美元的售价卖出一个雷达调节器和以32美元卖出一个高频无线电电路板。
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
In this paper, the step frequency response equation of optical-region radar target is firstly established by using theories of multiple scattering centers and local resonance.
本文首先根据多散射中心理论与局部谐振原理，建立了雷达目标在光学区阶梯频率波形激励下的响应方程。
The design of target doppler frequency measurement circuit is very important in phase coded MMW radar system because of the high measurement precision requirement of target speed.
在某相位编码毫米波雷达系统中，要求很高的目标速度测量精度，因而目标多普勒频率测量电路的设计比较重要。
The measurement error of differential absorption laser radar caused by the shift of its center frequency in measuring atmosphenc density has been discussed particularly.
详细地讨论了微分吸收激光雷达测量气体密度时中心频率的漂移所引起的测量误差。
With modern spectral estimation algorithm, spectrum analysis on Doppler frequency caused by vehicles radar movement is carried out in DSP chip.
利用现代谱估计的算法，在DSP芯片中对检测车辆雷达运动产生的多普勒频率进行频谱分析。
Digitized multiple frequency CW radar is a kind of new system radar.
数字化多频连续波测距雷达是一种新体制雷达。
The inconsistency of frequency response between channels degrades the performance of adaptive digital beam-forming in over-the-horizon radar.
在天波超视距雷达中，通道之间的频响不一致影响了自适应波束形成的性能。
Firstly, the obtained radar signal radio frequency, pulse width, repeat frequency are composed to get a combined probability assignment function of radar parameters by applying D-S method.
首先，对侦察雷达所能探测到的目标雷达信号的载频、脉宽、重频，应用证据理论将其组合，得到雷达参数的联合概率分配函数。
The design of target Doppler frequency measurement circuit is very important in phase-coded MMW radar system because of the high measurement precision requirement of target speed.
在某相位编码毫米波雷达系统中，由于对目标速度测量精度的要求很高，因此目标多普勒频率测量电路的设计也具有比较重要的地位。
Researchers at Fraunhofer Institute for High Frequency Physics and Radar Techniques in Wachtberg, Germany, have developed a sensor that can see through the smoke.
在德国Wachtberg的弗劳恩·霍夫高频物理学和雷达技术研究所，研究人员已经开发出一种能看穿烟雾的传感器。
These conclusions are important for choosing suitable radar system parameters such as center frequency , resolution and imaging squint angle in engineering design.
这些结论对工程设计牛选择合适的工作参数，如载频、分辨率、成像斜角等具有较为重要的参考价值。
In stepped frequency radar, the velocity of targets must be estimated and compensated to eliminate the range migration and distortion due to target moving.
步进频率雷达中，目标的径向运动将导致合成的目标径向一维距离像产生距离徙动和波形失真，需要对目标速度进行估计以补偿其影响。
This paper studies how to detect the moving targets on the land and sea surface in the background of clutters by using pulse-pulse step frequency radar.
研究了用脉间步进频率雷达对杂波背景噪声下地面或海面动目标的探测。
A phase cancellation method is presented for extended targets processing in stepped frequency radar.
首先基于相位对消原理提出一种适用于扩展目标的步进频率雷达信号处理方法。
As a device match of the high frequency ground wave radar, the responder 'working is correlating with the radar.
作为高频频地波雷达的配套器件，应答器的工作方式和雷达密切相关。
The frequency hopping coded signal is a new pulse compression radar signal, and has great analysis value.
跳频编码脉冲信号是一种新的脉冲压缩雷达信号形式，极具研究价值。
The influence of time length and beat frequency on radar range is discussed.
讨论了信号时长和差拍频率对雷达作用距离的影响；
The principle of MMW stepped frequency radar for one dimension range imaging in ideal condition is introduced.
给出了毫米波频率步进雷达理想情况下一维距离像成像原理。
In the system of radar, Doppler frequency is very sensitive to the coding signal.
雷达系统中，相位编码信号对多普勒频率非常敏感。
LFMCW radar nonlinear residual frequency errors zero crossing detection periodogram.
标签LFMCW雷达非线性剩余频差过零检测周期图。
In this paper, researched into the method of nonlinear optimization for obtained optimal HF radar work frequency, finished to optimize HF radar work frequency on-line real-time.
该文研究了在获得噪声频谱基础上，使用非线性优化方法获取雷达优质工作频率或频段，实现高频雷达工作频率在线实时优化选择。
Radar signal Carrier Frequency and Pulse amplitude are very important parameters in radar countermeasure and radar reconnaissance .
雷达信号载频与脉冲幅度是雷达侦察与对抗的重要参数。
Radar signal Carrier Frequency and Pulse amplitude are very important parameters in radar countermeasure and radar reconnaissance .
雷达信号载频与脉冲幅度是雷达侦察与对抗的重要参数。
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