CAJ | 학술논문

根据软件通信体系结构对数字信号处理模块通用性、灵活性以及功能软件化、软件动态加载的要求，采用可编程器件构建模块，实现中频以下高速信号的数据处理与传输功能。该模块采用 AD/DA 实现高中频信号模数变换，通过现场可编程门阵列(FPGA)实现逻辑简单、实时性强的混频、滤波处理，通过数字信号处理器(DSP)实现复杂的信号处理及信道编解码处理，利用通用处理器实现复杂而灵活的控制管理以及动态加载DSP和FPGA的功能。在印刷电路板设计阶段，分析电容去耦、阻抗匹配、信号串扰等影陞高速信号质量的因素，并提出解决方法。仿真结果表明，所设计的数字信号处理模块可以满足应用需要。
근거연건통신체계결구대수자신호처리모괴통용성、령활성이급공능연건화、연건동태가재적요구，채용가편정기건구건모괴，실현중빈이하고속신호적수거처리여전수공능。해모괴채용 AD/DA 실현고중빈신호모수변환，통과현장가편정문진렬(FPGA)실현라집간단、실시성강적혼빈、려파처리，통과수자신호처리기(DSP)실현복잡적신호처리급신도편해마처리，이용통용처리기실현복잡이령활적공제관리이급동태가재DSP화FPGA적공능。재인쇄전로판설계계단，분석전용거우、조항필배、신호천우등영승고속신호질량적인소，병제출해결방법。방진결과표명，소설계적수자신호처리모괴가이만족응용수요。
In order to meet universality and flexibility of digital signal processing board, functional software design and software dynamic loadable for Software Communication Architecture(SCA) wireless communication system, this paper builds a module which is composed of programmable devices and suits for high-speed data processing and transmission. It uses AD/DA as IF signal’s Analog-to-Digital converter, uses Field Programmable Gate Array(FPGA) to realize high real-time processing which logic is simple, uses Digital Signal Processor(DSP) to achive complex signal processing and channel encode/decode. Furthermore, it uses General Purpose Processor(GPP) to satisfy need of complex and flexible control and management, as well as dynamically load DSP and FPGA. In the PCB module design stage, after considering the influence of the capacitor decoupling, impedance matching and signal crosstalk on the high-speed digital signal, it does the detailed design according to the signal transmission requirements. Simulation results show that the module can meet the application need, the method is feasible.