Parametric analysis of achievable signal-to-noise ratio of a full-waveform space-based backscatter lidar

被引：1

作者：

Tcherniavski, Iouri

Dudelzak, Alexander ^{[1
]}

Koujelev, Alexander ^{[1
]}

机构：

[1] Canadian Space Agcy, St Hubert, PQ J3Y 8Y9, Canada

来源：

INTERNATIONAL JOURNAL OF REMOTE SENSING | 2012年 / 33卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

RADIATIVE-TRANSFER; DISCONTINUOUS CANOPIES; ASYMMETRIC CROWNS; TRANSFER MODEL; VEGETATION; AIRBORNE; PROPAGATION; SCATTERING; DESIGN;

D O I：

10.1080/01431161.2011.568532

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

Performance analysis of a space-based backscatter lidar for structural measurements of ground vegetation has been undertaken with the purpose of developing a computer tool for the lidar-system simulation/trade-off studies. A realistically achievable system's signal-to-noise ratio (SNR) has been estimated. The developed mathematical model describing the end-to-end return pulse propagation takes into account signal-and noise-affecting factors such as laser-beam scattering on the target canopy, atmospheric scattering and the background solar radiation. Spatial full-waveform resolution requirements for retrieving canopy's architecture are evaluated based on canopy structural models. The analysis concept allows to parametrically trade-off system simulation variables such as orbit altitude, laser pulse width, beam footprints, divergence, apertures of transmitting and receiving optics.

引用

页码：1360 / 1382

页数：23

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