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

Abstract

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

CLC Number:

TN911.7

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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References 18

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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%

Design and Implementation of Demodulator Componentization Based on Heterogeneous Signal Processing Platform

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