frequency table
4.The Direct Digital Frequency Synthesizer is a kind of fully digitized frequency synthesizer, which consists of the phase accumulator, the sine look-up table, the digital to analog converter and the low band filter. It is of high frequency resolution, fast frequency switching speed, low phase noise, the ability to switch frequencies while maintaining constant phase, and the ability to producing arbitrary waveforms.
7.The article introduces PLC embedded PID control frequency conversion velocity modulation constant pressure water supply control system constitution, the S7-200PID loop table, the PID algorithm formula, the PID instruction wizard and other functions, The article also introduces Inverter embedded PID control frequency conversion velocity modulation constant pressure water supply control system constitution, Inverter embedded PID parameters and functions.
9.The results of measurement show that the video frequency format WMV(LAN Video 768 Kbps) is suitable for the video analysis of the technique and tactics used in table tennis matches. The video is good to broadcast at the speed of 75%～85% of the normal one,but there can be distinctions among different kinds of matches.
10.This paper statistics the number of commonly used Uighur words using word frequency statistics and frequency distribution statistics,discusses the design principal,describes the structure of the word information contained in the MT dictionary using BNF formation and Jackson chart,finally introduces construction and data structure,word sorting method,structure of index table and attribute library and search method of an electronic dictionary for Uighur-Chinese MT system.
