precision sweep 中文意思是什麼
precision sweep
解釋
精密掃描-
According to the high precision and rotation stability requirement of negative scan unit of cylinder photography typesetting machine, the three levels of cylindrical gears transmission separately, the two - stage cylindrical gears - worm drive, and the worm drive was chosen through calculating its velocity ratio, the checking transmission precision, carrying on the movement precision analysis to the sweep unit, and computing overall transmission error
摘要針對圓筒型照相排版機底片掃描裝置要求傳動精度高，轉動平穩的特點，分別選擇三級圓柱齒輪傳動，雙級圓柱齒輪蝸桿傳動，蝸桿傳動3種常見的傳動方式，計算其傳動比，驗算傳動精度，對掃描裝置進行運動精度分析，計算總體傳動誤差。 -
In this thesis, based on this kind of application, we made theoretical analysis and engineering practice on high - precision lfmcw and its signal processing millimeter wave broadband lfmcw radar has quite high theoretical range - precision and distance resolution, however, for the real radar system, the nonideal parameter of its transmitting signal, such as power fluctuation and the nonlinearity in frequency sweep, will result in the decreasing of the practical rang - precision and the distance resolution of radar
本文基於這一應用對高精度lfmcw測距雷達及其信號處理進行了理論分析和工程實踐。毫米波寬帶lfmcw雷達具有很高的理論測距精度和距離分辨力，但對于實際的雷達系統，其發射信號的非理想參數-掃頻功率起伏和掃頻非線性，將使得雷達的實際測距精度和距離分辨力下降。 -
Main contents included are : 1. analyzed, simulated and validated the effect of power fluctuation and the nonlinearity in frequency sweep on radar practical ranging precision, and the validating method of nonlinearity in frequency sweep
主要內容為: 1 .分析、模擬並驗證了掃頻非線性對雷達實際測距精度的影響、掃頻非線性的校正方法。
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