因此，研究中频数字化接收机技术有重要的意义。
Therefore, it is significant to research into and develop IF digitalized receiver.
最后结合软件无线电思想进行了中频数字化硬件实现。
At last, the IF digital scheme is implemented on the hardware platform by utilizing SDR thoughts.
基于软件无线电思想介绍了一种可行的中频数字化接收机系统设计方案。
A feasible digital intermediate frequency receiver based on software radio technology is presented in this paper.
本文介绍了基于软件无线电思想的雷达中频数字化接收机的设计与性能分析。
This paper introduces the design and analysis of software radio mind based IF digital radar receiver.
摘 要 ：提出了一种基于软件无线电思想的接收机中频数字化系统设计方案。
This paper presents the blue print of a kind of IF digital system based on the technology of software radio.
针对短波射频数字化对器件的要求较高，功耗较大，现在一般采用中频数字化技术。
This paper gives out the IF design of a certain short-wave radios IF digitalization, introduces the elementary theory and a realized method of the IF digital receiver.
讨论了多相滤波的基本原理、设计及FPGA实现，给出了多相滤波的中频数字化接收机的实现方案。
The basic principle, design and FPGA implementation of polyphase filtering are discussed, and implementation project of wideband digitized receiver based on polyphase filtering is given.
结合虚拟仪器的特点，提出并实现了一种虚拟射频频谱仪的方案，着重介绍了其中的中频数字化实现方法。
Combined with the features of virtual instrument, the scheme realizing virtual RF spectrum analyzer is presented and realized in this paper, and digital intermediate frequency method is emphasized.
以采样定理为基础，通过对三种跳频电台采样方案的比较得出结论，黑盒中频数字化方法是目前最合理的选择。
Based on sampling theorem, by the comparison of three sampling scheme, and the conclusion is drew that the black box of medium frequency digital is the most reasonable choice.
第二章介绍了中频数字化软件无线电的结构，并阐述了软件无线电的关键理论和软件无线电中的信号处理技术。
Chapter 2 sets forth the structure of IF (Intermediate Frequency) digital Software Radio, the critical theory of Software Radio and the signal processing technique about it.
提出了一个欠采样中频收发器的体系结构，它在中频数字化以前先通过欠采样将中频频率变到一个较低的频率。
A receiver architecture is presented that utilizes the subsampling concept to down-convert the IF signal to a lower IF before been digitized.
给出了FM正交解调结构，即在统一的中频数字化硬件平台上，与单边带、调幅等波形一起在基带完成正交解调。
The architecture of FM quadrature demodulation was provided. On the universal IF digitalization hardware platform, FM waveform was demodulated in base-band together with SSB and FM.
本文研究表明在卫星定位导航系统中使用中频数字化的软件无线电结构是可行的，同时大大简化了用硬件对接收的卫星信号进行处理时电路的复杂性。
The study of this paper indicate that the application of digital IF Software Radio framework is practicable in the receiver of the Satellite Positioning and Navigation system.
计算机仿真结果和现场可编程门阵列仿真结果表明，多相滤波的中频数字化接收机设计方法是可行的，并还可灵活地实现现有专用芯片很难实现的宽带接收技术。
The results of computer simulation and FPGA simulation indicate that a technique to design wideband digitized receiver based on polyphase filtering is feasible , and can neatly implement wid…
本文讨论的中频数字相关处理方法为将来接收机接收通道的数字化打下了坚实地基础。
We supply detailed principle diagram and circuit diagram in the paper. The method of IF digital correlative processing that is the basic of digitize of receiver's channel.
本文讨论的中频数字相关处理方法为将来接收机接收通道的数字化打下了坚实地基础。
We supply detailed principle diagram and circuit diagram in the paper. The method of IF digital correlative processing that is the basic of digitize of receiver's channel.
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