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- wideband digital IF 宽带数字中频
- Bachelor's Degree of Electronic Information Engineering. Major in wideband digital communication. 科,电子信息工程专业。主要从事宽带数字通信研究。
- As an effective digital modulation scheme, OFDM is widely used in wideband digital communication systems, such as DVB-T. OFDM是一种高效的数据调制方式,被广泛地应用于宽带数字通信领域。
- The digital IF modulator desinged meets the requirement of the WCDMA system. 所设计的数字中频调制器能够很好地满足WCDMA的系统要求。
- This paper presents a new wideband digital beamforming method using subarrays and Linear Frequency Modulation (LFM) signal. 该文在基于子阵和发射为线性调频信号的前提下,提出一种宽带子阵数字波束形成方法。
- The digital IF demodulator meets the requirements of the WCDMA system. 所设计的中频解调器通过实际测试,能够满足WCDMA系统数字中频的要求。
- 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。
- It must contain at least one alphabetic character or decimal digit if it begins with an underscore. 如果名称以下划线开头,则必须包含至少一个字母或十进制数字。
- Research results prove that the design of digital IF modulator and demodulator of Software Radio appeases the capability and requirement of Software Radio. 研究结果表明,本文所设计的软件无线电数字中频调制解调模块能够满足软件无线电对中频调制解调器的性能要求。
- Wideband Digital SSB Down Converter 宽带数字单边带下变频器
- wideband digital crossconnect system 宽带数字交叉连接系统
- Wideband Digital Switching System 宽带数字切换系统
- This paper introduces the basic principle of the digital beamforming technique and it's key techniques. Then the digital IF signal, digital quadroture demodulator, the beamformer and the beam controller is primarily discussed. 介绍数字波束形成技术的基本原理、关键技术。着重讨论中频数字化及正交解调器、波束运算器和波束控制器。
- HF wideband digital reconnoitering receiver 短波宽带数字侦察接收机
- A high performance digital IF radar receiver which uses IF echo and COHO joint process algorithm, field sampling, field processing and remote transmission is introduced. Its performance can meet the requirements of modern high performance radar system. 采用中频回波和中频相参信号联合相干处理 ,现场采样 ,现场处理 ,远程传输的体系结构实现了高性能数字中频雷达接收机 ,其性能可以满足现代高性能雷达系统的需要
- The paper provides the design of hardware of digital IF modulator and demodulator of Software Radio which includes Digital Signal Processor、Micro Control Unit and AD/DA convertor etc. 本文主要研究了软件无线电中数字中频调制解调模块的设计和实现,设计了一个以数字信号处理器、微控制器和AD/DA转换器等器件为核心的基本硬件平台,运用正交调制程序对数字、模拟基带信号实现数字正交调制,上变频至中频信号输出;
- District Design of Wideband Digital Radio Frequency Memory PCB 宽带数字储频PCB的分区设计
- 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。
- Design of Digital IF Based on Software Radio 基于软件无线电数字中频设计
- The Research of Digital IF in Radio 无线电台中频数字化研究