The effects on its performance by the factors such as sanpshots and number of array sensors are investigated and their relations are also qutitantively analyzed . 2 其次通過大量計(jì)算機(jī)仿真,深入分析了快怕數(shù)和陣元數(shù)對(duì)貝葉斯高分辨目標(biāo)方位估計(jì)方法性能的影響。
Its angular resolution ability under different snrs is summarized comprehensively . the effects on its performance by the factors such as snapshots and number of array sensors are investigated and their relations are also quantitatively analyzed 深入研究了bmode方法的估計(jì)性能,得到其在不同信噪比下的角度分辨門限以及不同的快拍數(shù)和陣元數(shù)對(duì)其性能的影響。
This paper establish the mathematics formula of radiometric calibration of infrared staring imaging systems by an advanced weighting function based on the linearity response of infrared focal plane arrays sensor of infrared camera , and establish the mathematics formula of non - linearity based on the fact that the response of the irfpa is non - linearity 本文以紅外相機(jī)為例,在紅外焦平面探測(cè)器輻射線性響應(yīng)的基礎(chǔ)上,采用一種先進(jìn)的加權(quán)函數(shù)方法,推導(dǎo)出了紅外凝視成像系統(tǒng)輻射定標(biāo)的數(shù)學(xué)表達(dá)式,同時(shí)在紅外焦平面陣列探測(cè)器輻射響應(yīng)非線性的實(shí)際情況,推導(dǎo)了非線性的數(shù)學(xué)表達(dá)式。
The active pixel sensor structure widely used in image sensor is used here to convert the micro photoelectric signal generated in pixel to large electric signal to facilitate the signal processing and reduce the noise . the arrayed sensor structure ? s used to obtain the coordinate and shape information of targets 該傳感器的感光單元采用了cmos圖象傳感器中使用的有源像素傳感器( activepixelsensor , aps )設(shè)計(jì),在感光單元內(nèi)部由光電信號(hào)預(yù)處理電路直接將傳感產(chǎn)生的光電信號(hào)轉(zhuǎn)化為幅度較大的電信號(hào)輸出,避免了對(duì)微弱信號(hào)的處理,降低了噪聲的影響。