负延迟和变频采样的瞬态信号低冗余存储方法  

Negative Delay and Frequency-change Sampling Transient Signal Redundant Storage Method

作　　者：张威峰[1,2] 靳鸿[1,2,3] 陈昌鑫[1,2] 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]苏州大学机电工程学院,江苏苏州215021

出　　处：《探测与控制学报》2014年第6期53-56,共4页Journal of Detection & Control

基　　金：山西省研究生优秀创新项目资助(20133104);山西省青年科技研究基金资助(2013021015-1)

摘　　要：针对单次爆炸加速度随机瞬态信号的高速采样存在信号完整记录与大量冗余数据相矛盾的问题,提出了一种采用负延迟和变频采样为手段的瞬态信号低冗余存储方法。该方法采用负延迟分区域存储减少随机瞬态信号高速采样中出现的大量冗余数据,利用变频采样实现测试仪的低功耗。仿真实验表明:负延迟分区域存储方法有效地减少了随机触发前的冗余数据,变频采样的策略降低了系统功耗,在保证有效数据完整记录的同时实现了数据的低冗余存储,为存储测试仪器的微型化提供了一种有效途径。The single explosive acceleration stochastic transient signal being with the problem that a large num-ber of redundant data was recorded except besides full records of high-speed sampling signal.a kind of negative delay and low frequency sampling by means of the transient signal redundant storage method was put forward in this paper.The method adopted the negative storage areas to reduce the random delay transient signal in high-speed sampling of a large number of redundant data,and used variable frequency sampling tester to reduce power consumption.Simulation results showed that the negative delay storage areas method could effectively reduce the redundant data before random trigger.The power consumption of the system was reduced by the frequency sam-pling strategy.

关 键 词：瞬态信号 随机触发 变频采样 低冗余 

分 类 号：TM930.12[电气工程—电力电子与电力传动]