Synthesizing FPGA Digital Modules for Software Defined Radio

J. DeGroat, G. Reehal, S. Nagarjuna
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引用次数: 8

Abstract

Software defined radio (SDR) has gained much interest in recent years due to the advancements in FPGA technology. FPGA provides the capability of programming analog components (Mixers, PLL, Filters etc...) which were traditionally implemented in hardware. In this paper digital functional blocks that need to be programmed in FPGA core are designed and simulated using Matlab for amplitude demodulation for double side band (DSB) with carrier, double side band with suppressed carrier (DSB-SC) and Single side band with suppressed carrier (SSB-SC). Sampling frequency of 4 MHz is selected to ensure that sampling rate is greater than twice of maximum commercially available AM carrier frequency (of 1720 kHz) and carrier frequency of 610 kHz is used for simulations. This simulation result concludes the proper operation of the design.
软件无线电中FPGA数字模块的合成
近年来,由于FPGA技术的进步,软件定义无线电(SDR)引起了人们的极大兴趣。FPGA提供了编程模拟组件(混频器,锁相环,滤波器等)的能力,这些传统上是在硬件中实现的。本文设计了需要在FPGA内核中编程的数字功能模块,并利用Matlab对带载波的双频带(DSB)、带抑制载波的双频带(DSB- sc)和带抑制载波的单频带(SSB-SC)的幅度解调进行了仿真。采样频率为4mhz,以确保采样率大于商用最大调幅载波频率(1720khz)的两倍,并使用载波频率610 kHz进行模拟。仿真结果表明了该设计的正确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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