抽取

A set of mixers (210, 212, 214, 216) mixers the output of the first pair of decimation filters with two phases of a digital representation of an local IF signal.

一组混频器(210，212，214，216)使第一对抽取滤波器的输出与本地IF信号的数字表示的两相混频。

A strong relationship exists between the decimation ratio and the converter's effective resolution.

抽取率和转换器有效分辨率之间存在一个强大的关系。

The multi-stage decimation filter is a main subject of digitalsignal processing theory.

多级抽取滤波技术是数字信号处理技术的一个重要分支。

Passing Decimation adopt the kind rate lowered decrease the signal's data measures, in order to handle and calculation easily.

通过抽取实现采样率的降低减少了信号的采样数据量，以便于处理和计算。

A high-effective structure of decimation implemented by FIR is discussed.

给出了一种FIR实现信号抽取的高效结构。

At last, this design of the decimator is implemented on FPGA hardware platform, and tested by oscilloscope and spectrum analyzer.

最后，采用系统硬件平台将程序写入FPGA芯片，利用示波器和频谱分析仪对设计的抽取器进行了频域和时域性能分析。

THE DESIGN AND IMPLEMENTATION OF DECIMATOR BASED ON FPGA ABSTRACT Software radio is regarded as the developing direction of communication in future, and as one part of this, decimator change the high rate dataflow to a lower one, which meets the require of real-time processing and makes software radio come true.

软件无线电是未来通信的发展方向，而作为其重要组成部分之一的抽取器，将难以实时处理的高速数据流变为低速率信号，使软件无线电的实现成为可能。

A digital integrator reduces circuit area and power consumption by implementing a two-stage integration for a decimator with only one adder.

减小电路面积和功耗的数字积分器只用一个加法器为一个抽取器实现两级积分。

Because the signal now resides in the digital domain, you can apply a lowpass digital filter to attenuate the higher frequency noise and a decimator filter to slow down the out

因为信号位于数字域，可以采用低通数字滤波器削弱高频率噪声，采用抽取滤波器减小输出数据的速度。

Because the signal now resides in the digital domain, you can apply a lowpass digital filter to attenuate the higher frequency noise and a decimator filter to slow down the output-data rate.

因为信号位于数字域，可以采用低通数字滤波器削弱高频率噪声，采用抽取滤波器减小输出数据的速度。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。