Design And Implementation Of Multi-Angle Observation System On Polarization Remote Sensing

In the use of multi-band, multi-temporal, hyper spectral remote sensing data to improve classification ability on the ground objects by remote sensing, it was noted that the polarization angle information provides the identification and classification of remote sensing information with influence and contribution which are the three-dimensional spectral features of the ground objects in 2πspace. Compared with the single direction of remote sensing, multi-angle makes observations on the target information to be rich through the observation of more than one direction on the ground fixed targets. It is hoped to extract more detailed and reliable three-dimensional ground targets spatial structure parameters than a single observation of the direction for the study of a new way to BRDF.Through the design and construction of multi-angle observation system on polarization in the paper, it makes preliminary exploration on three-dimensional spectral features of the ground objects. The key research is the realization of multi-angle adjustment. It has important theoretical significance and practical value to study the spectral analysis in the polarized remote sensing, the feature observation and the aerial remote sensing. The main research and work are as follows:1. According to the functional achievement of the multi-angle remote sensing on the polarization, the overall system is designed. The drive of the structure in the system is needed to analyze for designing the rotating platform, the swing mechanism, the incident light institution and the automotive lift platform. After the preliminary design, the structure of the system is simulated by the simulation software. Next Project participant process and test part of the system.2. The hardware design of the control system is implemented. The selection of the master chip comparison, the choice of DSP as the main controller, and system development tools used are described. Based on the practice function of the control system, this article introduces the process of research in the drive module, display module, communication module. During the development in the drive module, the system uses relay driver make the power on and off, through the drive UCN5804B to drive the stepper motor; during the development in the display module, this system selects the OLED display and designs the connection between TMS320LF2407 and OLED in the use of locks register 74LS374 to implement indirect access, to facilitate the adoption of DSP's parallel port to achieve; The use of serial communication means to implement the communication between a host computer and the subordinate computer.3. The preparation of the corresponding subordinate computer software and PC software for debugging serial communication is made. The simulation of the control software verifies the correctness of its application.4. In the use of Polarization multi-angle spectrometer platform and ASD spectra, the experiments of the different rocks' spectra are accomplished to get the spectral characteristics and verify the feasibility of the experimental platform.This design of multi-angle polarization sensing system greatly improves the test continuity of the spectral characteristics. The rock spectrum experiments validate the feasibility of the multi-angle information extraction to provide technical support for further development in the remote sensing observations.