attenuation correction 中文意思是什麼

attenuation correction 解釋
衰減校正
  • attenuation : n. 1. 變薄，變細。2. 減少，減弱。3. 稀釋。4. 【物理學】衰減。
  • correction : n 修正，改正；校正；矯正；〈古語〉懲罰；勘誤表，補正。 a copy disfigured by numerous corrections ...
  1. Thereinto, the correction of attenuation is a big problem in millimeter - wave cloud radar detection

    但是，毫米波雲雷達探測，必須考慮的問題之一是大氣衰減訂正。
  2. Main conclusions drawn from the analyses of calculating results are as follows : ( 1 ) the microwave absorption of atmosphere gas have obvious attenuation at the wavelengths for cloud detection, thereinto, the water attenuation effect changes greatly, so the 94ghz cloud detecting radar should have water vapor attenuation correction scheme. ( 2 ) when 37ghz and 94ghz radars detect clouds, the difference between the atmosphere and cloud attenuation and the large variety of radar reflectivity conduce the intension of the radar backscatter signals change. ( 3 ) for the thin cloud layer and low water content of cloud, 37 - ghz radar backscatter signals are not as good as 94 - ghz radar, that is to say that the 94ghz radar has better capability in thin clouds detection

    本工作得出如下結論： （ 1 ）大氣氣體的微波吸收在測雲波段產生明顯的衰減，其中水汽衰減效應變化很大；即將上天的空間94ghz測雲雷達必須有水汽衰減訂正方案； （ 2 ） 37ghz和94ghz雷達測雲，由於大氣和雲衰減不同和雷達反射率的很大差異，導致雷達回波信號強弱不同； （ 3 ）對雲層較薄、含水量較少的雲，在不計雷達參數的情況下， 37ghz雷達回波信號不如94ghz測雲雷達，也就是說94ghz對薄雲有更強的探測能力；對雲層較厚、含水量大的雲，由於強衰減的作用， 94ghz雷達回波信號小於37ghz雷達； （ 4 ）從大氣衰減的不利因素方面考慮，空間94ghz雷達測高層薄雲的效果最好；測低層薄雲時需要考慮氣體衰減訂正；因濃厚雲的強衰減作用，探測其中下部的能力大大減弱，不僅要進行衰減訂正，而且要藉助其他信息來反演整個雲層的含水量垂直分佈； （ 5 ）為了獲得從極薄到極濃厚雲的垂直分佈探測能力，未來測雲雷達系統最好採用雙波長甚至三波長（如94 、 37和13ghz ） 。
  3. The primary aim of this study is to provide some basic information to the atmospheric correction for 94 ghz cloud radar. the atmospheric attenuation at 37 and 94 ghz have been calculated and analyzed in different cloudy atmospheres

    本工作主要比較分析在37ghz和94ghz大氣的衰減特性，計算分析了在不同雲、大氣條件下37和94ghz的大氣衰減，目的是對星載94ghz雲雷達進行大氣的衰減訂正。
  4. The results show that these algorithms for attenuation correction can work well in the valid range and their effects on attenuation correction are almost identical. when attenuation is strong or measurement error of real echo is large, however, the result from the h - b algorithm for attenuation correction is not good

    結果表明：在有效的訂正范圍內，幾種訂正方法均能得到很好的訂正，並且訂正效果幾乎保持一致，但h - b演算法在衰減作用很強或實際回波測量值誤差很大時，其訂正結果就變得不可靠了，從而造成訂正能力下降。
  5. Facing the problem that we always ask ourselves whether the technique and parmeters we use are suitable, we have to consider it in five main processing step, deconvolution, static correction, normal moveout, noise attenuation and migration

    根據噪音在處理過程中的不同階段表現屬性不同，處理中採用不同的處理手段或不同的處理參數分階段對噪音進行衰減。以便做到最大限度壓制噪音，而盡可能不損傷有效信號，提高原始資料的信噪比。
  6. In order to eliminate the beam - hardening artifacts, most current correction algorithms have to assume that the x - ray beam spectra are known and the mass attenuation coefficients of the detected object related to different energy are given

    目前的多數射束硬化校正演算法需假設已知ct系統的x射線能譜，並已知構成被測物體的物質關于不同能量的光子的質量衰減系數。
  7. The attenuation correction coefficient influences correction quantity and correctable thickness

    衰減訂正系數影響訂正量的大小和可訂正厚度。
  8. In this paper, the theory for attenuation correction has been studied and advantages and disadvantages of several algorithms for applications have been analyzed. further more, some of them have been applied on real data

    本文從衰減訂正演算法的理論研究入手，詳細探討了幾種衰減訂正演算法的優缺點，並在實際資料中對幾種演算法進行了應用。
  9. In addition, this paper provides the co - plane display of the volumetric - scan data of two weather radars. in a result, time - space accordance effect and attenuation correction effect for data of two weather radars can be viewed directly

    本文進行了雙雷達聯合探測資料的共面顯示，可以比較直觀地看到雙雷達資料的空間對應效果和衰減訂正的效果。
分享友人
分享到 Line

分享到臉書