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- Through comparison and analysis of the section plans, it displayed that the image effect by the centroid frequency downshift method is better than by the intensity attenuation method. 通过分析比较两种方法的成像效果图可以看出，质心频移法的成像效果要好于场强衰减法。
- A NEW STUDY FOR THE DOPPLER CENTROID FREQUENCY ESTIMATE FROM THE SAR ECHOES 星载SAR的多普勒中心频率估计的新探索
- Keywords Radio wave penetration;Attenuation;Finite-difference method;Forward simulation;Centroid frequency downshift;Computed tomography; 无线电波透视;衰减;有限差分法;正演模拟;质心频移;计算机层析成像;
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- centroidal frequency 形心频率
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- centroid frequency 形心频率
- centroid frequency downshift 质心频移
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- centroidal frequence 形心频率
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Small dissipation factor at high frequency. 高的频率和小的损耗因素.
- Spread the palpitate frequency love till ending. 循着心跳的频率爱到永不分离。
- Wave speed equals frequency times wavelength. 波速等于频率乘以波长。
