...计者可把高通过门槛设定成5kHz-低于接收资料流的最低讯号内容，并高于移动中标签所可能产生的最高都普勒频率(Doppler Frequency)，且仍远高于60Hz的电源线频率。而产生的输出讯号可借由被设定成四阶式(Fourth-order)的LT1568低通过滤器传送出去。
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doppler frequency shift 多普勒频移 ; 都卜勒频移 ; 率偏移 ; 多卜勒频移
Heterodyne Doppler Frequency Shifts 专利的异相多谱勒频移 ; 异相多谱勒频移
Doppler frequency offset 多普勒频偏 ; 多普勒频移
Doppler frequency indicator 多普勒频率指示器
off-set Doppler frequency 偏移都卜勒频率
The distance moving rate and Doppler frequency shifting are gathered to correct the dim speed to decrease the speed error.
研究用目标移动速度和多普勒频移相结合克服测速误差大和速度模糊的矛盾。
参考来源 - 逆合成孔径雷达成像及目标识别Firstly, a DDS-based method for digital-domain synthesis of time-varying Doppler frequency in dynamic GPS signal is proposed in this dissertation.
论文首先基于直接数字频率合成技术提出了一种能够在数字域内直接合成出动态信号中时变多普勒频率的信号合成方法。
参考来源 - 高动态GPS载波跟踪技术研究Finally,the impacts of SNR and Doppler frequency on transmission time were investigated.
最后,研究了平均信噪比和多普勒频率对传输时间的影响。
参考来源 - 无线网络中自适应调制编码联合ARQ的性能分析 in CAccording to static receiver, the range of acquisition were that Doppler frequency shift’s range was from (-5 kHz+IF) to (5 kHz+IF) and C/A code phase shift’s range was from 0 bit to 1023 bit.
文中所研究的接收机是静态接收机,因此捕获模块的捕获范围是载波多普勒频移5KHz,C/A码相位漂移0～1023个码片。
参考来源 - GPS接收机基带处理器研究与设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The simulator can mainly simulate the doppler frequency and range.
模拟器主要完成多普勒频率模拟和距离模拟。
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。
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。
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