您要查找的是不是：
- A new technique to estimate the Doppler frequency rate is proposed with high accuracy and low computation complexity. 本文提出了估算多普勒调频率的一种新方法,其精度高、计算量少。
- Accuracy of Estimation of Doppler Frequency Rate for Spaceborne SAR 星载合成孔径雷达多普勒调频率估计精度分析
- The Accurate Measurement Algorithm of Doppler Frequency Rate between the Clusters of Pulses 脉冲群间多普勒频率变化率的高精度测量算法
- Doppler frequency rate 多普勒调频率
- 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。
- 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 the high frequency, it can get great Doppler frequency which bepropitioustomeasure slow velocity. 其频率高,可获得更大的多普勒频率,更有利于慢速目标的检测;
- According to the laser gain change is linear related to the frequency shift, the Doppler frequency is extracted by the signal processing. 根据激光的增益变化和频率变化成线性关系，可以对信号进行处理求出多普勒频移。
- This algorithm has small computation amount load and has high estimation precision of doppler frequency rata-of-change. 算法具有计算量小、多普勒频率变化率估计精度高的优点。
- Data that focus not on age but on length of service give similar results and confirm that the frequency rate of work accidents decreases with length of service. 事故的次数的多少与人的年龄无直接关系，但与服务的年限的长短有关，事故的频率随著服务年限的增长而减少。
- The arithmetic of target motion analysis is studied in this paper by means of Doppler frequency and bearing in Cartesian coordinates. 摘要研究一种在直角坐标系下利用多卜勒频率和方位信息的目标运动分析算法。
- Then after amplitude limiting, to be preamplified, demodulated, bandpass filtered, the doppler frequency shift signal is extracted. 经过限幅保护，接收放大，检波和带通滤波后，将多普勒频移信号提取出来。
- Doppler frequency modulation rate 多普勒调频率
- changing rate of Doppler frequency 多普勒频率变化率
- The CRAs and CRVs morphological features of Doppler frequency shift spectrums were recorded and analyzed with DRG Doppler retinal flowmeter(10 Mhz probe). 方法:采用 DRG眼用多普勒血流仪,对正常成年人男女各 24名双眼的 CRA、CRV多普勒频谱图象进行采集和形态分析。
- When there exists general array error in uniform linear array (ULA), an estimation of the direction of arrival (DOA) and Doppler frequency for signals was proposed. 摘要在均匀线阵存在阵列误差的情况下，提出了一种信号波达方向和多普勒频率估计方法。
- Abstract When there exists general array error in uniform linear array (ULA), an estimation of the direction of arrival (DOA) and Doppler frequency for signals was proposed. 摘要 在均匀线阵存在阵列误差的情况下，提出了一种信号波达方向和多普勒频率估计方法。
- This paper concerns relative technologies about carrier frequency synchronization and estimation in downlink signal in large doppler frequency shift condition. 本文对大多普勒频移情况中，下行信号载波频率同步估计的相关技术进行了研究。
- A new method for digital identification and demodulation of MPSK signals is presented under the condition of the Doppler frequency shift of channel attenuation. 针对衰落信道中广泛存在的多普勒频移现象,本文提出了一种MPSK信号数字化识别解调的方法。
- The principle of single GPS based wave buoy is introduced.GPS buoy measures horizontal and vertical wave motion using GPS signals with Doppler frequency shift effect. 摘要首先对GPS浮标测波原理进行分析，介绍了GPS接收器测量运动参数的多普勒方法；
