摘要
探讨了DSP系统初态设计的实际意义,提出了自下而上分级自检设计的一般优化原则,实现对器件级,功能级和状态级的初始优化智能自测试、自诊断和自修复.按上述原则设计了DSP图像采集处理系统自检.对扫描成像识别自检测试表明,开机复位系统进入指定初始态,初始同步频率扰动和初相补偿测试表明系统快速收敛于稳定初态,证明了该初始状态优化设计方法是可靠的.
A hirarchy selftest design was discussed. General principle of hierarchy selfchecking design from bottom to top is presented to fulfill intelligent selftest, selfdiagnosis and self-recovery from device to function to state. Optimized selftest design of image acquisition and processing system were described base on the above principles. The selfchecking of rosette scan, imaging and recognition were executed. The system enters a definite state after resetting. Original synchronous frequency error was convergent and original phase error turns to zero. This proves that the system converges a stable original state quickly. This also proves that the selftest design is feasible.
出处
《测试技术学报》
2003年第3期251-254,共4页
Journal of Test and Measurement Technology
