Performance of SIMO Networked Time-Delay Systems With Encoding–Decoding and Quantization Constraints

Abstract

In this paper, the performance of the single-input multiple-output (SIMO) networked timedelay systems is investigated. The performance is related to the internal factors, communication parameters and reference signals, and the boundary is related to the adjustment factors. Some new results are derived according to the inner-outer factorization and Cauchy's Theorem of two degrees-of-freedom controller. The results show that the performance is in connection with the inner factor (unstable poles, non-minimum phase zeros of the system). It is also demonstrated that the modified performance will be badly degraded by feedback channel quantization and adjustment factor constraints, and encoding-decoding is beneficial to the modified performance. INDEX TERMS Networked time-delay systems, modified performance, inner-outer factorization, SIMO.

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