摘要
介绍了一种基于TMS320VC5416数字信号处理芯片及TLV320AIC10模数、数模转换芯片实现的音频信号实时采集、处理及显示系统.在MATLAB平台上采用二阶级联型设计实现了IIR滤波器低通、高通和带通设计仿真,用C语言和汇编语言混合编程的方法在DSP中完成了各种控制功能及CCS环境下的频谱仿真,对滤波算法、采样频率等关键设计技术进行了分析研究.该系统已经成功地应用于对地下管道漏水检测,并取得了良好效果.现场实际测试及仿真分析表明,该系统的实时性、稳定性及抗干扰能力方面均达到了预期设计指标.
The real-time signal acquisition,a sending and displaying system based on TMS320VC5416 DSP and TLV320AIC10 A/D,D/A chip is introduced.Low pass,high pass and band-pass IIR filters are simulated in MATLAB.A variety of control functions and spectrum simulation in CCS programmed by C language and assembly language are accomplished.The key design techniques of filter algorithm and sampling frequency are analyzed.The system has been successfully applied to the detection of underground pipeline leakage,and has achieved good results.Testing on-the-spot and simulation analysis show that the real-time,stability and anti-jamming capabilities of the system meet the design requirement.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第3期336-339,共4页
Journal of Inner Mongolia University：Natural Science Edition
基金
国家自然科学基金资助项目(60772166
60572015)
