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: 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: 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: 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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