face signal 中文意思是什麼
face signal
解釋
回採工作面信號-
A new wavelet - bispectrum united detection algorithm is proposed to face with problems such as the complex structure and low signal to noise ratio of radar echo, when there exist difficulties in detecting impulses in through - wall radar systems
摘要針對沖擊體制穿墻雷達系統中回波信號結構復雜、信噪比低、信號檢測困難等問題，提出一種小波雙譜聯合檢測新演算法。 -
A sort of spot dynamic balance test system is developed using singlechip as a core apparatus. it can do single - face and double - face dynamic balance test, present result of unequilibrium and its phase position, can test rotate speed and vibration, can show the time - field and frequency - field picture of gain signal
本課題是利用單片機作為核心器件研製的一套可應用於現場的動平衡測試系統。該系統能完成現場動平衡單面或雙面測試，實時給出不平衡量的大小和相位。也可單獨測轉速和振動，還能對採集到的振動信號作時域、頻域圖顯示。 -
In order to improve the quality of the voltage signals, this paper has adopted the scheme of three phases and six organs in signal - generator part, which can eliminate the errors caused by the assembly warp and the zero shift of organs. this paper also has analyzed the distribution and varying rules of the magnetic field in the signal - generator part, then based on the conclusion of the analysis improved the structure of signal - generator, which could completely eliminate the noise signal caused by the roughness of the face on the magnetic steel ring. the improvement not only met the requirement of this study, but established the theory foundation for the super - high precision magnetic encoder in future research
因此，為提高原始電壓信號的質量，本文採用三相六元件的信號發生方案，通過差分處理濾除了由於裝配偏差和零點漂移帶來的信號誤差;本文對編碼器信號發生結構進行了磁場分析，依據磁場分析的結論對編碼器常用的信號發生結構進行了改進，改進后的結構利用積分原理在理論上能夠完全消除信號中由磁鋼環表面粗糙度引起的信號噪聲，進一步提高了信號質量，此結構不僅滿足了本課題的需要，而且為今後研製超高精度的磁電式編碼器奠定了理論基礎。 -
With the development of radar technology, radar system has been more diversiform and complicated, which make ecm face much more complex electromagnetic environment. how to sort and analyze signal exactly is an important research of ecm. in this paper, we mainly research the signal sorting 、 system simulating and dsp realizing : 1. the paper introduces the environment of ecm and analyses the character of time domain 、 frequency domain 、 air space 、 power density and polarization detailedly
本文主要就是研究復雜電磁環境下的彈上電子對抗系統信號分選關鍵演算法、系統軟體模擬以及dsp的實現，主要包括以下幾個方面: 1 .對電子對抗環境進行了介紹，並對雷達偵察機的信號環境的時域特徵、頻域特徵、空域特徵、功率密度（能量）特徵以及極化特徵進行了詳細的分析，得出了對雷達偵察接收機信號分選系統設計的主要依據。 -
As the merits of multi resolution analysis, wavelet theory now is widely applied in every fields of signal processing, especially in image codec, like jpeg2000, mpeg4 standards, etc. wavelet based spiht ( set partitioning in hierarchical trees ) codec algorithm and its application in face recognition are studied in this thesis. the main contributions are as follows : 1. the followings are studied in this thesis : principle of wavelet based image coding methods, key problems of wavelet transform in image codec and some main coding algorithms based on wavelet
本文研究了基於小波spiht （ setpartitioninginhierarchicaltrees ）圖像壓縮編碼性能及其在人臉識別中的應用，主要工作如下： 1 、給出了基於小波的圖像壓縮編碼的基本原理與主要幾種小波圖像壓縮演算法，討論了圖像編碼中小波基選取、邊界處理以及分解級數等幾個問題。 -
3. in the face of analog channels design, we took use of the ic chip to design the signal modulation module, data acquisition and peripheral circuits
3 .前端模擬通道設計，採用集成電路晶元，對信號調理模塊、數據採集和外圍電路進行設計，完成相關硬體pcb版圖繪制。 -
The electric part of film face - lifting equipment adopts plc ( program logic control ), acquisition and management of signal are designed and analyzed
在小油封整容器的電器部分採用了plc可編程式控制制器來進行控制。對信號的採集，處理進行了分析和設計。 -
Describing the condition of the interference, the visibility of the grain and the influence factors had also been carried out. secondly, we discussed the theory of the michelson fiber optical sensor. giving the way to realize the light system including the circuit design of the laser and light detector, showing how to organize the whole measurement system, the way of polished the end face of optic fiber and how to improve the quality of signal
其次從理論上分析了光的干涉原理，闡述了兩束光發生干涉的條件、干涉條紋的可見度以及影響因素等，並且給出了光纖邁克爾遜干涉系統的原理圖，敘述了發生邁克爾遜干涉的條件和組成邁克爾遜干涉系統的必要因素。
分享友人