国外电子测量技术
國外電子測量技術
국외전자측량기술
FOREIGN ELECTRONIC MEASUREMENT TECHNOLOGY
2015年
8期
82-86
,共5页
刘春香%李宁%石俊霞%张择书%郭永飞
劉春香%李寧%石俊霞%張擇書%郭永飛
류춘향%리저%석준하%장택서%곽영비
信息处理技术%TDICCD%成像指标计算%高速图像采集与判读
信息處理技術%TDICCD%成像指標計算%高速圖像採集與判讀
신식처리기술%TDICCD%성상지표계산%고속도상채집여판독
information processing technology%TDICCD%imaging index calculation%high-speed image collection and judge
为了适应TDICCD航天遥感相机向着高分辨率、宽视场方向发展,所带来的数据量巨大、像元时钟越来越高,设计了一套先通过降频方式、再选用双通道Cameralink图像采集卡来实现的高速 TDICCD航天遥感相机成像采集与判读系统。针对TDICCD遥感相机输出图像的时序,采用先对两路图像数据分别进行降频,接着采用支持双BASE模式的Cameralink图像采集卡采集图像。最后在某遥感相机平台上进行了验证。本系统可实现对双路像元时钟140 M Hz ,行频14 kHz ,位宽12 bit的图像进行连续、无丢失的采集、显示、存储,以及对图像进行全自动判读和计算多种指标。本系统工作稳定,准确高效,便携节能,适合外场实验。
為瞭適應TDICCD航天遙感相機嚮著高分辨率、寬視場方嚮髮展,所帶來的數據量巨大、像元時鐘越來越高,設計瞭一套先通過降頻方式、再選用雙通道Cameralink圖像採集卡來實現的高速 TDICCD航天遙感相機成像採集與判讀繫統。針對TDICCD遙感相機輸齣圖像的時序,採用先對兩路圖像數據分彆進行降頻,接著採用支持雙BASE模式的Cameralink圖像採集卡採集圖像。最後在某遙感相機平檯上進行瞭驗證。本繫統可實現對雙路像元時鐘140 M Hz ,行頻14 kHz ,位寬12 bit的圖像進行連續、無丟失的採集、顯示、存儲,以及對圖像進行全自動判讀和計算多種指標。本繫統工作穩定,準確高效,便攜節能,適閤外場實驗。
위료괄응TDICCD항천요감상궤향착고분변솔、관시장방향발전,소대래적수거량거대、상원시종월래월고,설계료일투선통과강빈방식、재선용쌍통도Cameralink도상채집잡래실현적고속 TDICCD항천요감상궤성상채집여판독계통。침대TDICCD요감상궤수출도상적시서,채용선대량로도상수거분별진행강빈,접착채용지지쌍BASE모식적Cameralink도상채집잡채집도상。최후재모요감상궤평태상진행료험증。본계통가실현대쌍로상원시종140 M Hz ,행빈14 kHz ,위관12 bit적도상진행련속、무주실적채집、현시、존저,이급대도상진행전자동판독화계산다충지표。본계통공작은정,준학고효,편휴절능,괄합외장실험。
In order to adapt the situation that TDICCD aerospace remote‐sensing camera’s huge amount of data and in‐creasing the pixel clock because of it toward resolution ,wide‐field direction ,a high‐speed TDICCD aerospace remote‐sensing camera imaging acquisition and judge system that reduce the frequency and use double‐channel Cameralink card was designed .Firstly ,image output timing of TDICCD camera was given .And then ,the original two channels image was reduce the frequency ,the Cameralink image acquisition card that support for dual BASE mode collected image . Finally ,one TDICCD camera testing was done .This system can realize the dual channels pixel frequency 140 M Hz ,line frequency 14 kHz ,12 bit image acquisition ,display and storage .It can automatically judge image and calculate various images indicators ,judge and calculation are accurate and fast ,it greatly improves the efficiency and avoids w rong justice . The developed highvspeed imaging acquisition and judge system is stable ,portable and energy saving ,that is suitable for field experiments .