This paper reviewe the developed process,character,system,and main uses of Ground Penetrating Radar. Subsurface Impulse Imaging Radar has been developed with transmitting pulse of 100kHz repeated freguency, 5ns pulse width and 150V double—direction pules amplitude. The antenna is bow — tie dipole style. The transmitting antenna and receiving one are separate. Received return wave is transformed to displayable slow signal by means of the sample transformation method. Transmitting, receiving
Based on fertilizer experimental design, an optimum model is established with spectrum characteristics for estimating winter wheat yield and deteming the relivant optimum period. The reflection ratio and its vegetation indices are important forecasting factors. In the study of nitrogen and phosphrus, TM1-4 and combinations of NTR and TM1-3 are all used as preminary factors to establish the model. In the models of wheat yield,N and P are introduced as variables.
This paper introduces a new spectral vegetation index, 6 — dimensional spectral greenness value GN. In estimating leaf area index of wheat canopy from spectral indices, GN is better than RVI, NDVI and PVI that they are often used by many researchers because its correlation coefficient is the biggest and its residual standard error is the smallest. There is only four channels radiometer in many departments of our country,so to calculate 4 —dimensional spectral greenness value in this paper.it also get a good result.
This paper deals with the waveform analysis of the spectra of specimens collected from Linglong gold ming in Shangdong province in the spectral region from 2. 0 to 2. 5 micron. The results show that this technique is useful in the identification of location and occurrence of quartz vein and its wall alteration.
This paper presents a navigational data acquicition and transmission device of LTN — 72 inertial navigation equipment, which has been used in the flight experiment for the calibration of a satellite—borne remote sensor. The result shows that both data and device are reliable.
This paper describes a complete,applicable,multi—purposed,thermatic background database that aims at different research tasks in the same region. The database accomplishes the purposes that one database can be used in various ways,that small bases are integrated into large ones,and that the database serves the regional research better, faster and more emconomically. The design, establishment, analysis and application of the map data in the regional database in this paper, the running functions
It has become one of the developing aspects of today’s remote sensing which processing remote sensed image based on the microcomputer. On the one hand,it has the advantage of flexible and convenient, on the other hand,it is difficult while processing a large amount of data because of the limit-ting of the properties of the microcomputer. In this paper,some high speed and useful methods which fulfilled on the microcomputer are intruduced,those methods have intensified the capability of remote
In this paper some approaches to process the image of Kuwait burning oil wells was introduced. The image was taken by Landsat Thematic Mapper during the Persian Gulf War. A method of calculating the burning wells was also given.
