| 基于CCD的回波信号图预处理软件设计与实现 |
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| 引用本文： | 张彦斌.基于CCD的回波信号图预处理软件设计与实现[J].教育技术导刊,2009,19(11):146-149. |
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| 作者姓名： | 张彦斌 |
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| 作者单位： | 杭州电子科技大学 通信工程学院，浙江 杭州 310016 |
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| 摘 要： | 随着光散射法测量PM2.5颗粒物浓度技术的发展，该技术成为测量大气PM2.5浓度的主要手段之一。散射激光雷达接收到的信号为回波信号图，通过建立回波信号图灰度值与PM2.5浓度的关系模型，实现对颗粒物浓度的测量。该技术需要对回波信号图进行预处理并提取散射信号，为了实现一种高性能、可实时测量的回波信号图预处理系统，设计一款基于Delphi7语言的实时图像处理软件。该软件通过对内存分配双缓冲区域、设置采集频率以及图像裁剪等方法，提高图片的采集与处理速率。实验结果表明，该软件操作简单、运行稳定且可扩展性较强。
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| 关 键 词： | PM2.5 激光散射雷达 Delphi 图像处理 |
| 收稿时间： | 2020-03-23 |
Design and Implementation of Echo Signal Image Preprocessing Software Based on CCD |
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| ZHANG Yan-bin.Design and Implementation of Echo Signal Image Preprocessing Software Based on CCD[J].Introduction of Educational Technology,2009,19(11):146-149. |
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| Authors: | ZHANG Yan-bin |
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| Institution: | College of Communication Engineering，Hangzhou Dianzi University，Hangzhou 310016，China |
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| Abstract: | With the development of light scattering method which measures the concentration of PM2.5 particles， this technology has become the main PM2.5 measurement method. The signal received by the scattering lidar is an echo signal map. By establishing a model of the relationship between the gray value of the echo signal map and the PM2.5 concentration， the particle concentration measurement can be achieved. This technique requires pre-processing of the echo signal map and extraction of the scattered signal for subsequent research. So in order to achieve a high-performance， real-time measurement of the echo signal pre-processing system， this paper designs a real-time image processing software based on Delphi7 language. Through the use of double buffer area， acquisition frequency setting and effective image cropping， real-time image acquisition and processing are achieved， and the acquisition display frequency reaches 2 seconds. Experimental results show that the software is easy to operate， stable in operation， good in data storage， and highly scalable. |
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| Keywords: | PM2 5 laser scattering radar Delphi image processing |
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