CAJ | 학술논문

基于Shannon采样定理的传统信息获取系统在高空间、时间和谱分辨率及系统其它性能上存在难以突破的瓶颈，压缩采样理论为提升航天遥感信息获取能力提供了新的思路。基于压缩采样理论的成像技术（压缩成像）将采样、压缩和数据处理3个过程完美的结合在一起，避免了传统遥感成像系统“先采样再压缩”方式带来的传感器和计算资源浪费，是未来光学遥感极具潜力的成像方式。文章在简要介绍压缩采样基本理论的基础上，总结和分析了国际上目前提出的光学压缩成像系统原型，设计开展了3组压缩成像物理实验，特别结合航天遥感需求设计了推扫式压缩成像方案，实验结果验证了压缩采样的基本原理，并为未来光学遥感压缩成像系统的设计提供了借鉴。
기우Shannon채양정리적전통신식획취계통재고공간、시간화보분변솔급계통기타성능상존재난이돌파적병경，압축채양이론위제승항천요감신식획취능력제공료신적사로。기우압축채양이론적성상기술（압축성상）장채양、압축화수거처리3개과정완미적결합재일기，피면료전통요감성상계통“선채양재압축”방식대래적전감기화계산자원낭비，시미래광학요감겁구잠력적성상방식。문장재간요개소압축채양기본이론적기출상，총결화분석료국제상목전제출적광학압축성상계통원형，설계개전료3조압축성상물리실험，특별결합항천요감수구설계료추소식압축성상방안，실험결과험증료압축채양적기본원리，병위미래광학요감압축성상계통적설계제공료차감。
Compressive sampling provides a new way for increasing the capability of information acqui-sition. Compressive sampling asserts that it is possible to accurately reconstruct signals from sub-Nyquist sam-pling, provided we make some additional assumptions(sparse or compressible) about the signal in question. The compressive imaging technology, which is based on the compressive sampling theory, integrates the proc-esses of sampling, compression and processing perfectly, avoiding resource waste caused by a traditional“sam-ple-then-compress”mode, and is a potential imaging technique for optical remote sensing. This paper first re-views the basic theory of compressive sampling. Then, several optical compressive imaging systems are intro-duced. Finally three physical experiments are designed to validate the principle of compressive imaging and the experiment results can be used as reference for the future optical remote compressive imaging system.