基于异构信号处理平台的解调器组件化设计与实现

doi:10.16180/j.cnki.issn1007-7820.2019.05.005

摘要/Abstract

摘要：

随着通信体制的日益发展,对应的解调算法也呈现多样化的形态。结合软件无线电技术的应用,研究高效、快捷的解调器开发方式显得越来越重要。文中利用软件无线电的思想和组件化方法,研究基于组件的数字解调器软件重构技术设计了解调器软件重构模型来解决重构的难题,并建立了解调器开发组件库。基于研制的组件库及解调器软件重构模型,以16QAM连续信号解调为目标,设计并基于新组件进行集成化开发,形成新的功能。通过测试,从误比特率对比验证重构的正确性及源代码复用率分析的角度证明,新方法的开发效率提高了71.63%。

关键词: 软件无线电, 组件化, 解调器, 软件重构, 组件库, 复用率

Abstract:

With the increasingly development of communication system, the corresponding demodulation algorithm also takes on a variety of forms. Combined with the application of the software radio technology, it is more and more important to research the efficient and fast way of modem development. Using the idea of software radio and the method of componentization, the study investigated the demodulator software refactoring technology based on component and designed the model of modem software refactoring to solve the problem of refactoring and form the modem development component library. Based on the developed component library and demodulator software reconstruction model and aiming at the 16QAM continuous signal demodulation, the proposed paper designed and implemented integrated development based on new components to form new functions.

Key words: software radio, componentization, demodulator, software refactoring, component library, reuse rate

中图分类号:

TN911.7

冀磊,黄焱,汪洋. 基于异构信号处理平台的解调器组件化设计与实现[J]. 电子科技, 2019, 32(5): 21-27.

JI Lei,HUANG Yan,WANG Yang. Design and Implementation of Demodulator Componentization Based on Heterogeneous Signal Processing Platform[J]. Electronic Science and Technology, 2019, 32(5): 21-27.

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功能模块	功能算法	组件名称
信源		Read_Data组件
数字下变频	DDC算法	DDC组件
定时同步	OM算法	Timing_OM组件
	Wang算法	Timing_Wang组件
	Gardner算法	Timing_Gardner组件
载波同步	LR算法+VV算法	Carrier_LR组件
	Fitz算法+VV算法	Carrier_Fitz组件
	MM算法+VV算法	Carrier_MM组件
	DD算法(BPSK)	Carrier_DD_BPSK组件
	DD算法(QPSK)	Carrier_DD_QPSK组件
	DD算法(8PSK)	Carrier_DD_8PSK组件

E_b/N₀/dB	8	9	10	11
误比特率	0.017 47	0.009 20	0.004 22	0.001 65
理论值	0.009 24	0.004 39	0.001 75	0.000 56
E_b/N₀/dB	12	13	14	15
误比特率	0.000 54	0.000 13	3.207 e^-5	6.401 e^-6
理论值	0.000 14	2.423 e^-5	2.763 e^-6	1.842 e^-7

算法模块	QPSK连续信号组件	16QAM连续信号组件	组件复用率	总复用率
DDC模块	DDC	DDC	100%	71.63%
定时同步模块	Timing_Gardner	Timing_Gardner_16QAM	78.86%	71.63%
载波同步模块	Carrier_DD_QPSK	Carrier_RC_16QAM	68.49%