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- It is then subject to such mathematical indignities as wavelet decomposition, multi-resolution Fourier analysis, polyphase filtering and discrete cosine transformation. 接下来它还要经过一些数学处理程序，比如小波分解，多重分辨率傅立叶分析，多相过滤，离散余弦变换等。
- In this paper, we use a common deducing method to acquire an efficient architecture based DFT polyphase filter banks to realize wideband digital channelized receiver. 采用一种具有普遍性的推导方法得到基于DFT多相滤波器组的宽带数字信道化接收机高效结构,并且将瞬时测频技术应用于该结构中,提出了一种数字信道化瞬时测频接收机方案。
- To improve IRRs of the system, two modules, RF filter and polyphase filter before the second downconersion, are added to the single-double quadrature structure. 为提高系统的镜像抑制性能，射频前端在单双正交结构的基础上添加两个模块：射频滤波器与第二次混频之前的多相滤波器。
- The key modules such as low noise amplifier, image-reject down-conversion mixer, IF polyphase filter in the whole system are implemented in 3V, 0.6 BiCMOS process. 在3V;0.;6 BiCMOS工艺下，设计了芯片中关键的低噪声放大器、镜像抑制下变频混频器、中频复数滤波器等电路模块。
- Under certain conditions, combining the polyphase filtering structure of decimation filter, put forward an optimum design method of quadrature demodulation receiver, which owns decimation structure. 结合抽取滤波器的多项滤波结构，在一定条件下，推导出了一种含抽取正交解调接收机最优结构设计方法。
- Application of Polyphase Filtering in Wideband DDC 多相滤波在宽带数字下变频中的应用
- Polyphase Filtering Wide-Band Channelized Digital Receiver 多相滤波宽带信道化数字接收机
- The Applications of Polyphase Filtering in Digital Quadrature Detection of SAR 多相滤波在合成孔径雷达数字正交解调中的应用
- The Digital Quadrature Coherent Detector with the Polyphase Filter 多相滤波法实现的数字正交相干检波器
- Digital Quadrature Coherent Detector with Reduced Polyphase Filter 基于多相滤波简化结构的数字正交相干检波
- You need to filter the drinking water. 你需要把饮用水过滤。
- The Design of Heightening Sampling Rate for Polyphase Filter by Interpolation 利用内插法提高多相滤波器采样率的设计
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- Filtering the water removed some of its impurities. 把水过滤一下除去了一些杂质。
- New ideas are slowly filtering into people's minds. 新思想逐渐深入人心。
- The news of the defeat started to filter through. 战败的消息开始传出来。
- It won't take long to filter the coffee. 用不了多少时间就可以把咖啡过滤好。
- I took this picture with a red filter. 这张照片我是用红色滤光镜拍摄的。
- Direct Digital Quadrature Transformation Techniques Based on Polyphase Filtering 基于多相滤波的直接数字正交变换技术
- We usually clear the water with a filter. 我们通常用过滤器使水净化。
