最新刊期
      卷 ， 期 3 ， 1995
      • Issue 3, (1995) DOI: 10.11834/jrs.1995031
        摘要：This paper introduces briefly the measurement principle of the Radar Altimeter.The altitude measurement error caused by timing jitter,clock accuracy and inherent noise in echo signal is analyzed.The key technique included“Full-deramp”and the method of using filter bank to seperate range returns is discussed.We have developped a Middle-Resolution Ocean Radar Altimeter Receiver System and successed in the experiment combining with the transmitter system. The design requirement of 5 nanosecond system resolution is achieved.  
        关键词：Radar altimeter;Full-deramp;Sea echo;system resolution   
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      • Feng Junbi
        Issue 3, (1995) DOI: 10.11834/jrs.1995024
        摘要：The Fengqing-Mengtonjie is a area where little mineral explorationhad been carried out and very few mineral resources had been found before ourresearch.Using the remote sensing TM image processed by computer and geochemi-cal data. we accomplish a comprehensive geological research in the area and succes-sfully predict the exist of many mineral resources such as Au,Sn,Pb,Cu,etc. Itis very useful for utilization of these resources in this area. This research is a partof“The Available Geological Information Abstracted from Several Remote SensingImages”and“The model for Field Exploration”.K  
        关键词：mote sensing application;Geochemistry;Metallogenic prognosis   
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995022
        摘要：祝贺中国科学院遥感应用研究所成立１５周年春光明媚，万物复苏，在这充满生机的季节里，国务院召开全国科学技术大会前夕，中国科学院遥感应用研究所迎来了１５周年生日。在此，我们祝贺遥感应用研究所在我国遥感科学技术与应用领域所取得的丰硕成果，并在国际遥感界为我...  
          
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995023
        摘要：Remote sensing model of 3-dimensional green biomass（hereinafter refer-red to as“3-biomass”）and the estimation of environmental benefits of greenerythe author ohtains several major breakthroughs:（1）putting forward the conceptof 3-biomass and further perfecting the quantitative index system of urban greene-ry;（2）successfully correcting“Logistic curve”equation, while the 3-biomass throu-ghout Shanghai municipality has been measured and caculated in terms of the me-thod of simulating the stereo quantity by the plane quantity, which not only savesthe manpower & material resources, but also increases the accuracy;（3）putting for-ward the concept of mode forest and measuring the standard conversion quantitiesrequired in estimating the benefits of greenery environment in terms of 3-biomass;（4）by means of 3-biomass,etimating the environmental benefits of the whole cityfor the first time,e.g.absorbing carbon and producing oxygen, absorbing SO2 andstagnating dusts and lowering the temperature in summer due to green community.Obtaining the value of 3-biomass not only helps the estimation of the environmen-tal benefits of greenery,but also promotes us to analyze the rationality of the pre-sent greenery community and provides the important technical base for the plan ofthe whole city via the estimation of this benefit.  
        关键词：D green biomass;simulating stereo quantity;Mode forest;Environ-mental benefit   
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995025
        摘要：This paper researches geomorphic feature of active fault on the remotesensing images,discussed analysing method, procedure and result of the active faulton remote sensing images of different kinds and scales.  
        关键词：Active fault;remote sensing;Interpretation   
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      • Qiao Yanyou
        Issue 3, (1995) DOI: 10.11834/jrs.1995029
        摘要：Dynamic Segmentation is a new technique in the analysis,displayingand mapping of lines in GIS.In view of GIS application in the transportation in-formation management,this paper discusses the origin of dynamic segmentation andthe characteristics of attribute data base for it and gives the algorithm for its im-plementation. Taking the mutual querying between spatial data and attribute dataas an example,it demonstrats the application of dynamic segmentation,and dicus-ses the related algorithm and the command format.  
        关键词：GIS;Dynamic Segmentation;Arc   
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      • Tao Chuang
        Issue 3, (1995) DOI: 10.11834/jrs.1995028
        摘要：To efficiently implement the visualization of terrain data in GIS,a vi-sualization model of 3-D terrain based on the combination of fractal interpolationand Delaunay triangulation is proposed.By means of the model,not only the geo-metry accuracy can be satisfied and the characteristic of terrain are preserved,butalso the textures of terrain surfaces are nicely visualized.The spatial resolution ofthis model can be arbitrarily controlled by the scale,location and temporal parame-ters.The model is suitable for GIS visualization data handling and analyzing.  
        关键词：Visualization;Fractal;Delaunay triangulation;Terrain model;Statis-tical interpolation;Dynamic triangulation construction   
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995032
        摘要：A small-scale,low platform,X-band ground-based Scatterometer LS-X4radar scatterometer is introduced in this paper.Here we describe the design idea and method for realization of small-scale andhigh intelligence transmits.The system transmitts linear frequency-modulated continuous waveform,and ithas long-term stability of high/low temperature.The specification of scatterometer is as follows:Type FM-CW Bandwidth of FM1200MHz Measuring precision of σ￣0±1dB Total weight of antenna platform≤25kg Height of antenna platform 3.5m Range of height 2─4m System power dissipation（excluding computer）30W Only one person can operate this system, and the rotation of antenna, the ad-iustment of polarization mode,the processing of measure can be controlled by handor program.This high intelligence scatterometer system consists of a microcomputer connec-ted with the antenna platform by a 15 20m cable,a LS-X4 intellegence interfaceboard and systemd diskette.When system running,the current window given by the system program guidethe user to operate easily If necessary,the user can expand the functions as desiredby himself and perform post-processing to the data.If the measuring process mustbe completed outside the door.a portable computer may be equipped.In conclusion,the LS-X4 ground-based scatterometer can be applied in labora-tory or outside the door,and provide service in many fields of microwave remotesensing.  
        关键词：small-scale;intelligence;scatterometer   
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995026
        摘要：Hydrocarbon content anomalies in soil above oil pool are good directindicating index on the earth surface. Oil remote sensing anomalies were obtainedby airborne SWIR scanner images through micro-computer image processing,inclu-ding image restoration,oil anomalous information extraction and recognition basedon spectral features of the index. The result was proved to be correspondent with the ascertained distributionof oil pools.  
        关键词：Image restoration;Oil anomalous information extraction;Image reco-gnition   
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995027
        摘要：For lack of detailed and accurate maps,it makes reseach work in an-tarctica difficult.Using TM and MSS imagery,the photographic maps in scale1∶200,000 of Greate Profile zone from Zhongshan Station to Antarctica Pole havebeen completed, These maps provide strong support to Chinese investigation in An-tarctica.There is description of methods and technologies for digital mapping of An-tarctica in Present paper.Ice and snow dominate the land features in Antarctica,the great brightnessand poorcontrast of ice and snow and streaking noise in satellite images make theprocedure of image processing difficult.On the other hand however, the contrastbetween bare rock land/sea water and ice/snow is so high that the details of ima-ges will be overcompressed.In the light of characteristics of satellite image in Antarctica,a filtering to re-move streaking noise has been discussed. Based on automatic identify classificationto enhance the details of objects and the methods and theory of digital rectifica-tion of satellite images using satellite positioning data and ground control pointsmeasured from field survey are also presented.  
        关键词：Satellite image;digital mapping;great profile zone of Antarctica;direction filtering;classified enhancement.   
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      • Issue 3, (1995) DOI: 10.11834/jrs.1995030
        摘要：General satellite remotely sensed images are gained in condition of na-tural solar radiation（not including thermal infrared in here）.Because the opticalcharacteristic（including strength,directionality and their mutual effect with groundobjects）of each branch of natural ray,mainly direct and diffuse radiation, are dif-ferent,the radiating signal received by satellite is a compound response to eachbranch reflected by terrain. This paper intruduces resolution of remotely sensedimage and formation of direct and diffuse images.This is distinctive signficance inthe remote sensing basic and applied research domain,for example, making modeldistinction of remoted sensed image,quantitative inversion of ground information etc.  
        关键词：remote sensing;Natural solar radiation;Direct and diffuse radiation;Image formation   
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