The in-pulse features of radar signals are extracted by the digital IF technology, and the modulation forms of radar signals are identified according to the in-pulse feature parameters.
介绍了通过数字中频技术提取雷达信号脉内特征，并根据脉内特征参数对雷达信号调制形式进行识别。
If ICT is used by narrow groups in society, we have at hand the digital divide between those with modern technology and those without.
假如ICT技术仅仅被社会群体当中的一小部分人所使用的，在我们社会当中很快就会出现在现代技术的掌握者和没有者之间所形成的数字鸿沟。
NEC’s technology extracts a digital signature that works even if the video is altered.
NEC技术提取的数字签名即使在视频改变后仍然能够起作用。
NEC's technology extracts a digital signature that works even if the video is altered.
NEC技术提取的数字签名即使在视频改变后仍然能够起作用。
As a key technology in digital quadrature demodulation system, the direct IF sampling filter with sharp cutting-off transition band can improve the performance of demodulation system.
中频采样是数字正交鉴相系统中的一项关键技术，具有锐截止特性的中频采样滤波器可以改善鉴相系统的性能。
In digital IF receiver based on IF sampling technology, one important issue of system design is how to realize wide instantaneous dynamic range, when the available digits of AD converter is limited.
在基于中频采样技术的数字中频接收机中，怎样在AD变换器位数受限的情况下实现较大的系统瞬时动态范围是系统设计中的一个重要问题。
In this paper, the conception of SWR is introduced, and the structure of digital IF receiver system is discussed including its core technology.
本文介绍了软件无线电的概念，探讨了数字中频接收机系统结构及其采用的关键技术。
Concerning e-reading, digital technology gives us access to information, to content, if you will, on a scale never before possible.
提及电子阅读，数字技术以前所未有的规模让我们随心所欲地获取信息和内容。
This paper is mainly about design and implementation of digital intermediate frequency (IF) transceiver combined with the software defined radios (SDR) technology based on FPGA.
本课题将以FPGA为硬件载体，结合软件无线电技术设计实现数字中频扩频收发系统。
At first, analog receiver is contrasted to digital receiver, and the feasibility and necessity of IF technology in radar signal processing are illuminated.
首先对模拟接收机和数字中频接收机进行了对比，得出采用数字中频处理雷达信号的可行性和必要性。
This paper presents the blue print of a kind of IF digital system based on the technology of software radio.
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.
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。
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