multifrequency system 中文意思是什麼
multifrequency system
解釋
多頻制- multifrequency : 多頻道
- system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
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Comparing with the traditional phase - shifted laser range finder, the method could implement the ranging with multifrequency by using single modulated frequency. it could not only solve the contradiction of the range and the precision, but has high degree of accuracy and wide range, simplify the hardware design, and reduce the cost. this paper introduced the theory of phase distance measurement, analyzed various testing methods and expatiated the hardware and the software for the proposal system
與傳統的相位法測距相比，本方法使用單調制頻率實現了多頻測距，有效地解決了相位法測距中測程與測量精度之間的矛盾，具有高精度、大量程、大噪聲容限的特點，而且簡化了硬體設計，降低了成本；其次在數據處理中採用數據加窗函數的方法，提高了方波信號的頻譜解析度，進而提高了測量的精度。 -
Dual - tone multifrequency system dtmf
雙音多頻制 -
Dual - tone multifrequency system
雙音多頻制 -
The main purpose of this paper is to research on the diagnosis of the analog circuit with tolerance based on parameter identification, it try to find a novel method of the fault diagnosis of the analog system. in this paper, a procedure for the multifrequency fault diagnosis of analog circuits is presented. generally speaking, for the diagnosis equations are nonlinear, it ’ s very difficult to solve them with high precision
本文的研究重點在於具有容差模擬電路故障診斷的參數識別方法，探索解決模擬電路故障診斷問題的新途徑，介紹了由電路結構來提取故障診斷方程的多頻支路和多頻節點方法，由於故障診斷方程一般情況下是非線性的，因此，傳統的非線性方程求解方法存在精度不高，計算困難的缺點。
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