| 1. | The doppler frequency is a function of the two scattering directions .
多普勒频率是两个散射方向的函数。 |
| 2. | The doppler frequency can be obtained as a heterodyne or beat effect .
由于外差或频差效应，能够得到多普勒频率。 |
| 3. | Doppler frequency analyzer
多普勒频率分析器 |
| 4. | It will be affect the range processing that the frequency agile of carrier in frequency agile signal arouse the variety of doppler frequency , so the compensate of velocity door is obligatory
跳频信号中载频的跳变会引起多普勒频率的变化,这对距离的处理产生影响,必须进行速度门的处理。 |
| 5. | After analyzing the range vernier ' s principle , the needed data is presented in applying range vernier to modern radar , including range data , i / q data and doppler frequency data
通过对游标测距原理的分析，得到了实现游标测距所需的雷达测量数据，即距离数据、基带i / q数据和多普勒频率数据。 |
| 6. | The movement of the satellites causes doppler frequency to drift , the receiver usually tracks the signal frequency the receiver through phase locked loop , in order to can demodulate the signal
卫星运动造成多普勒频率漂移，接收机一般都采用锁相环来跟踪接收信号频率，以便能正确解调信号。 |
| 7. | Isar transmits wide bandwidth signals to obtain high range resolution . the cross - range resolution is obtained by the doppler frequency information of the target ’ s rotation
逆合成孔径雷达通过发射大带宽信号获得好的距离分辨率,利用目标相对于雷达的转动产生多普勒频率梯度来获取好的方位向分辨力。 |
| 8. | The research consists of several aspects as follows : the characteristics of uwac is analyzed , including the multi - path effect , the doppler shift effect , etc . . then the mathematics " model of uwac is given
研究内容主要包括以下几个方面： ?分析了多途时间扩展、多普勒频率扩展等水声信道的物理特性及水声信道的数学模型。 |
| 9. | 2 . the spectrum correcting technique is applied in one dimension distance sidelobe restraining successly and deal with well with this understanding of zero or low doppler frequency and without noise , mussy weaves
2 、在一维距离旁瓣抑制中成功地应用了谱修正技术，在无噪声、杂波干扰，零或低多普勒频率情况下，处理效果良好。 |
| 10. | Lfmcw echo is modulated by doppler frequency . according to the characteristic , moving targets with different ambiguous velocities could be classified via mtd , but the range - velocity coupling problem still exists
线性调频连续波雷达回波同脉冲雷达一样受到了多普勒频率的调制，通过动目标检测( mtd )可抑制杂波，检测运动目标。 |
