Applying Adaptive Blind Equalization Algorithm to Vehicle's Information Bus Image Restoration
-
摘要: 选用GHM多小波,对其进行平衡处理后,采用基于平衡正交多小波变换常模盲均衡算法(MWTCMA),对汽车信息总线中的受干扰的倒车影像信号进行自适应恢复实验,并将实验结果与常模盲均衡算法(CMA)和正交小波盲均衡算法(WTCMA)等方法进行对比。结果表明:采用MWTCMA方法可以提高仿真计算收敛速度,降低计算误差。Abstract: After the balanced processing of GHM multi-wavelets, this paper restores the interfered reverse image signal of a vehicle's information bus with the constant modulus blind equalization algorithm based on balanced orthogonal multi-wavelet transform (MWTCMA). The (MWTCMA with the traditional algorithms such as Constant Modulus Blind Equalization Algorithm (CMA) and Wavelets Transform Constant Modulus Algorithm (WTCMA) are compared. The results show that the use of MWTCMA algorithm can enhance the convergence speed and effectively reduce calculation errors.
-
Key words:
- adaptive restoration /
- algorithms /
- automobiles /
- blind equalization
-
[1] 罗峰,苏剑,袁大宏.汽车网络与总线标准[J].汽车工程,2003,25(4):372-376 Luo F, Su J, Yuan D H. Vehicle electronic networks and bus standards[J]. Automotive Engineering, 2003,25(4):372-376 (in Chinese) [2] Rouche D.汽车车载网络(VAN/CAN/LIN)技术详解[M].北京:机械工业出版社,2006 Rouche D. Details of vehicle VAN/CAN/LIN[M]. Beijing: China Machine Press, 2006 (in Chinese) [3] Tindell K, Burns A, Wellings A J. Calculating controller area network(CAN) message response times[J]. Control Engineering Practice, 1995,3(8):1163-1169 [4] Tindell K W, Hansson H, Wellings A J. Analysing real-time communications: controller area network(CAN)[C]// Proceedings of the Real-Time Systems Symposium, 1994:259-263 [5] Zuberi K M, Shin K G. Scheduling messages on controller area network for real-time CIM applications[J]. IEEE Transactions on Robotics and Automation, 1997,13(2):310-316 [6] Zuberi K M, Shin K G. Non-preemptive scheduling of messages on controller area network for real-time control applications[C]// Proceedings of the Real-Time Technology and Applications Symposium, Chicago, IL: IEEE, 1995:240-249 [7] Cena G, Valenzano A. An improved CAN fieldbus for industrial applications[J]. IEEE Transactions on Industrial Electronics, 1997,44(4):553-564 [8] Hong S H. Scheduling algorithm of data sampling times in the integrated communication and control systems[J]. IEEE Transactions on Control Systems Technology, 1995,3(2):225-230 [9] Hong S H, Kim W H. Bandwidth allocation scheme in CAN Protocol[J]. IEEE Proceedings-Control Theory and Applications, 2000,147(1):37-44 [10] Leen G, Heffernan D. TTCAN: a new time-triggered controller area network[J]. Microprocessors and Microsystems, 2002,26(2):77-94 [11] Almeida L, Pedreiras P, Fonseca J A G. The FTT-CAN protocol: why and how[J]. IEEE Transactions on Industrial Electronics, 2002,49(6):1189-1201 [12] Nolte T, Nolin M, Hansson H A. Real-time server-based communication with CAN[J]. IEEE Transactions on Industrial Informatics, 2005,l(3):192-201 [13] 李爽,孙克怡.汽车网络的分类及发展趋向[J].单片机与嵌入式系统应用,2006,6(2):5-8 Li S, Sun K Y. Classification and trend of automobile network[J]. Microcontrollers & Embedded Systems, 2006,6(2):5-8 (in Chinese) [14] Johnson B R. Multi-wavelet moments and projection prefilters[J]. IEEE Transactions on Signal Processing, 2000,48(11):3100-3108 [15] Fowler J E, Li H. Wavelet transforms for vector fields using omni directionally balanced multi-wavelets[J]. IEEE Transactions on Signal Processing, 2002,50:3018-3027 [16] 张艳萍.水声信道分数间隔盲均衡算法研究[D]. 西安: 西北工业大学, 2005 Zhang Y P. Study on underwater acoustic channel fractionally spaced blind equalization algorithms[D]. Xi'an: Northwestern Polytechnical University, 2005 (in Chinese) [17] Lam E Y. Blind bi-level image restoration with iterated quadratic programming[J]. IEEE Transactions on circuits and systems Ⅱ: Express briefs, 2007,54(1):52-56 [18] Vural C, Sethares W A. Blind image deconvolution via dispersion minimization[J]. Digital Signal Processing, 2006, 26:137-148
点击查看大图
计量
- 文章访问数: 78
- HTML全文浏览量: 15
- PDF下载量: 9
- 被引次数: 0