Description: 基于CORDIC算法数字下变频器设计提出基于CORDIC算法利用FPGA平台数字下变频器设计方案-CORDIC algorithm based on the design of digital down-converter based on CORDIC algorithm using FPGA platform design Digital Downconverter Platform: |
Size: 167936 |
Author:elisen |
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Description: 数字下变频器的matlab实现，一定的设计指标，可以用来知道vhdl程序设计-Digital Down Converter for matlab realized, certain design specifications that can be used to know VHDL Programming Platform: |
Size: 2048 |
Author:杨斌 |
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Description: 应用matlab 软件设计了下变频器中的CIC、HB、FIR滤波器等核心模块，并将各模块融为一体从软件实现的角度完成了对系统的搭建和功能仿真。-About such key algorithms as CIC, HB, FIR of each module in down- conversion, discussion, abstraction and summarization are given in this paper. Using the MATLAB software, we design such core modules as CIC filter, HB filter and FIR filter of the digital down converter. Platform: |
Size: 182272 |
Author:邓建良 |
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Description: 我对一个输入调制信号：采样率FS=1200K，中心频率F0=300K，带宽300K。输入信号为一个[样点数,2]的矩阵,即I,Q两路.
进行频谱搬移，分为I，Q分量两路进行矢量乘法，NCO的设置为FC=300K，t=样点数乘以1/FS，
乘完以后我的频谱上显示竟然信号带宽增加了300K，但是中心频率没有改变，请问各位朋友是哪儿出了问题？谢谢您的阅读和意见-Digital Down Converter for matlab realized, certain design specifications that can be used to know VHDL Programming Platform: |
Size: 22528 |
Author:Jose |
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Description: 我对一个输入调制信号：采样率FS=1200K，中心频率F0=300K，带宽300K。输入信号为一个[样点数,2]的矩阵,即I,Q两路.
进行频谱搬移，分为I，Q分量两路进行矢量乘法，NCO的设置为FC=300K，t=样点数乘以1/FS，
乘完以后我的频谱上显示竟然信号带宽增加了300K，但是中心频率没有改变，请问各位朋友是哪儿出了问题？谢谢您的阅读和意见-Digital Down Converter for matlab realized, certain design specifications that can be used to know VHDL Programming Platform: |
Size: 2048 |
Author:Jose |
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Description: The PDF file along with the MATLAB code will step you through how to use the MATLAB® Signal Processing Toolbox™ and the Filter Design Toolbox™ to analyze and optimize the design of the digital down-converter chain for GSM applications.-The PDF file along with the MATLAB code will step you through how to use the MATLAB® Signal Processing Toolbox™ and the Filter Design Toolbox™ to analyze and optimize the design of the digital down-converter chain for GSM applications. Platform: |
Size: 371712 |
Author:Rafal |
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Description: GSM中数字下变频器的matlab辅助设计，并可以采用matlab生成verilog代码。-GSM digital down converter in the matlab-aided design, and can be used matlab generate verilog code. Platform: |
Size: 314368 |
Author:张勇奇 |
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Description: 文中应用软件无线电思想对数字下变频器中的几个关键技术进行了研究,对下变频各个模块所涉及到的CIC、HB、FIR等关键算法进行了讨论、提炼与总结,应用matlab软件设计了下变频器中的CIC、HB、FIR滤波器等核心模块,并将各模块融为一体从软件实现的角度完成了对系统的搭建和功能仿真.仿真结果表明,系统实现了对中频信号的下变频处理且无失真现象,大大减少了软件无线电系统数宁信号处理的运算量和数据的存储量,极大地提高了系统的实时性.-The paper application software radio digital down converter in the thinking of several key technologies have been studied for the next conversion involved in each module to the CIC, HB, FIR and other key algorithms were discussed, refined and summarized the application of matlab software design downconverter in the CIC, HB, FIR filters and other core modules, and integration of various modules from the software point of complete structures and functions of the system simulation. The simulation results show that the system achieved the right under the IF signal Frequency processing and without distortion, thus greatly reducing the number of software-defined radio system, rather the amount of signal processing operations and data storage capacity, greatly improve the system in real time. Platform: |
Size: 287744 |
Author:王楚宏 |
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Description: 本文以软件无线电为指导，提出基于CORDIC算法利用FPGA平台数字下变频器设计方案。首先分析下变频器的结构；然后采用模块化设计思想，将数字下变 频的功能模块包括数字控制振荡器、CIC抽取滤波、HBF抽取滤波器、FIR低通滤波器进行分析和FPGA的设计；最后在 MATLAB/DSPBuilder下硬件仿真模块进行仿真并给出仿真结果。-In this paper, software-defined radio as the guidance, based on the CORDIC algorithm uses the FPGA platform, digital down-converter design. First analyzes the structure of down-converter and then use a modular design concept, the digital down-conversion function modules including digital controlled oscillator, CIC decimation filtering, HBF decimation filter, FIR low-pass filter for analysis and FPGA design the final In the MATLAB/DSPBuilder under the hardware emulation module simulation and simulation results. Platform: |
Size: 201728 |
Author:jiang |
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Description: matlab simulink 开发的CDMA2K DDC数字下变频器和滤波器，使用XILINX FPGA V5系列，并包含DDC每个阶段的输出验证matlab程序，非常实用。-matlab simulink developed CDMA2K DDC digital down converter and filter, using the XILINX FPGA V5 series, and contains the output of each stage of verification DDC matlab program, very useful. Platform: |
Size: 33792 |
Author:helon |
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Description: 基于FPGA的数字正交下变频器设计,在ALTERA的DE2开发板上设计一个多相滤波结构数字正交变换器。其中多相滤波模块是最关键模块，该模块将64阶滤波器的系数分成奇偶两路，并通过VHDL常数的方式存储在模块内部。这些常数是通过在MATLAB中调用FDATool，根据滤波器的参数要求来生成的。这些浮点格式的滤波器系数还需要在MATLAB中计算成二进制补码的形式，才可以存储在模块中。-FPGA-based digital quadrature down-converter design, ALTERA the DE2 development board to design a polyphase filter structure of the digital quadrature converter. Polyphase filter module which is the most critical module, 64-order filter coefficients are divided into two parity, and stored by VHDL constants inside the module. These constants are called by MATLAB FDATool, according to filter parameters required to generate the. These floating-point format in MATLAB filter coefficients need to be calculated into a binary form of complement, it can be stored in the module. Platform: |
Size: 7411712 |
Author:joey |
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Description: 数字下变频器的matlab仿真，包括基带信号的调制，然后经过混频模块、CIC模块、FIR模块最后得到基带信号的过程-Digital down converter matlab simulation, including the modulation baseband signal, and then after mixing module, CIC module, FIR module finally get baseband signal process Platform: |
Size: 4096 |
Author:li1xin2ling3 |
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Description: Chirp信号数字下变频的Matlab和ISE+Modelsim交互仿真-Interactive simulation of Matlab and ISE+Modelsim in Chirp signal digital down converter
Platform: |
Size: 13499392 |
Author:ting |
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Description: 资料为matlab实现的DDC功能，即数字下变频。数字下变频是软件无线电中的关键技术，文件可用matlab打开，直接可以跑出波形。-this is the code of DDC(digital down converter) on matlab,DDC is a key technology of SDR,this file can be opened by matlab，and you will get the simulation waveform directly. Platform: |
Size: 1024 |
Author:李源码 |
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Description: 这是一个Buck变换电路的仿真模型，很好的实现了直流降压功能。(This is a Buck converter circuit simulation model, very good realization of the DC step-down function.) Platform: |
Size: 293888 |
Author:卓求
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Description: 先用Matlab理论仿真，得出滤波器系数。再用Verilog语言在ISE环境下编写程序，通过Modelsim和ChipScope进行波形仿真和引号抓取，从而提高调试的效率。通过手机发送指令来控制上下变频器的参数。(Firstly, the filter coefficients are obtained by simulation with the theory of matlab. Then the program is written in Verilog language under ISE environment. Waveform simulation and quotation mark grabbing are carried out through Modelsim and ChipScope, so as to improve the efficiency of debugging. The parameters of up-down converter are controlled by sending instructions from mobile phone.) Platform: |
Size: 6740992 |
Author:财哥在此 |
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