Real-time MTIE assessment with flexible control of computation process

Implementation of real-time MTIE assessment method

“…The results of the experimental tests of the real-time MTIE computation using DSDR and EF methods with additional procedures were presented in [9,11]. Application of the modifications proposed -control of computation progress with threshold -has enabled effective protection against exceeding the limit.…”

“…In order to avoid these troublesome situations during the measurement and computation process performed in the real time, some procedures controlling the computation progress were introduced [9]. Using these procedures, the computation for a few longer observation intervals (belonging to the considered set of intervals) may be suspended in order to reduce the number of operations carried out within one sampling interval.…”

“…However, for longer observation intervals and data series showing monotonic change of time error process the time of calculation was longer than sampling interval considered. Application of additional procedure controlling the computation progress allows to suspend the computation for some observation intervals and to make some toilsome operations later (for the successive sampling intervals), when smaller number of operations is executed, or at the latest, when the measurement is finished [9]. With this procedure applied the EF method has presented better performance during tests and therefore it was implemented for a real measurement and computation process.…”

Experimental tests of the real-time MTIE assessment methods for multi-channel time error measurement

“…Suspension of the analysis for particular observation interval can be performed in order to protect the measurement and computation process against exceeding the limit of the computation time (length of the sampling interval). Recently measured n max +1 time error samples (τ max =n max τ 0 is the longest observation interval considered) for each channel can be stored in the buffers in the memory in order to reduce the data access time, which is the crucial issue in the real-time computation [6,8]. Therefore all search operations will be performed using the data stored in the tables in the operational memory of the computer, which will reduce the computation time substantially.…”

“…First solution is based on the time effective MTIE computation method with binary decomposition [4]. Second solution exploits the time effective extreme fix (EF) method [5] successfully applied earlier for single-channel real-time MTIE assessment [6,8,9]. In the paper the results of experimental tests of these methods are presented.…”