Dissertation > Excellent graduate degree dissertation topics show

Study on a Few Issues in Sounding with Bistatic Radar System

Author: WuDi
Tutor: WangZhenHui
School: Nanjing University of Information Engineering
Course: Atmospheric Remote Sensing Science and Technology
Keywords: Bistatic radar system Side scatter Effective volume Propagation effect
CLC: P415.2
Type: Master's thesis
Year: 2013
Downloads: 67
Quote: 0
Read: Download Dissertation


At present, polarization/dual polarization Doppler weather radar system are the mostly used methods in precipitation measuring both in domestic and at abroad. As the studies in particle scattering problems and the weather radar technology getting improved, the use of Dual-Polarization Doppler weather radar in measuring precipitation has significantly improved the accuracy of precipitation estimate. Meanwhile, the Bistatic Doppler weather radar becomes a new area which the meteorologists both at home and abroad get interested in. Currently, the Bistatic radar system is mainly used in wind profile retrieval, we suppose to study its probing characteristics in detecting precipitation and its effective volume problems.In this paper, we firstly introduce the coordinate of bistatic radar system, so as to discuss the scattering and propagation equations of a bistatic radar system detecting small ellipsoidal droplets. By using the derived bistatic weather radar equations over ellipsoid raindrops, we studied the propagation effect of bistatic radar system when detecting different distributed rainfall areas, all of the results are under the condition that all the ellipsoid rotation axis are vertical upward, we use these equations studied. Meanwhile, the expressions of the effective volume for bistatic polarization radar system sampling has been studied and the results provide a theoretical base for bistatic polarization radar antenna control, data process, sidelobe contamination elimination and detecting accuracy improvement.The results show:(1) Propagation effect makes larger high value areas of echo power ratio around the receiver radar than by the side of the main radar in bistatic radar system; moreover, propagation effect has relationship with the polarization of incident electromagnetic wave.(2) The specific value of the effective volume for bistatic and monostatic polarization radar system sampling is same to the derivative of Rt (polar axis length of the main radar in bistatic radar system) and a (half length of the long axis of the oval). (3) According to the equations we derived in this paper, with the given distance of2f, main antenna azimuth (expressed as Φ) and emit wave radial transmission distance (Rt), the size and spatial location of effective volume of bistatic radar, corresponded to the received echo, can be determined.

Related Dissertations

  1. The Study on Imaging Technology of Bistatic SAR with a Stationary Receiver,TN958
  2. From the "Jia Junpeng" Phenomenon to See the Propagation Effects of Network Language,H136
  3. Wave Propagation Analysis of Super High-rise Building Structure under Impulse-type Vertical Earthquake,TU973.2
  4. The Spatial and Temporal Characteristics of Broadband Supercontinuum by a Two-color Field,O437
  5. Research on Prediction Technology of Microblog Propagation Effect,TP393.092
  6. International Propagation Effect of Chinese City Image,G206
  7. Doppler radar construction and analysis of bistatic weather,P412.25
  8. Improved small-angle forward light scattering method particle testing theory and technology research,O439
  9. The Theoretical Study of Lasing without Inversion in an Open Three Level Ladder-Type System,TN249
  10. Propagation Effect of High-powered Intra-channel and Inter-channel Crosstalk Attack in All-Optical Networks,TN929.1
  11. The Study of Probing Theory and Application Analysis of Bistatic Doppler Weather Radar,P412.25
  12. Elasto-plastic Earthquake Response of Large-span Spatial Structure under Wave Propagation Effect,TU311.3
  13. The Preliminary Study of Two Dimensional Ionization Chamber Array and Electronic Portal Imaging Device System in Dosimetric Verification,R730.5
  14. Investigation on Scatter Problem in Twin-axis Radiographic System,O436.2
  15. New Methods Studies on the Design of CFB Furnace Chamber and the Evaluation of Separator,TK229.66
  16. Study on Nitrogen Removal by Soil Aquifer Treatment Process That Enhanced Nature Reoxygenation and Effective Volume,X703
  17. Study on the Data Acquisition System of Automatic Weather Station in Shandong Province,P415.12
  18. Automatic weather station data management and application system design and implementation,P415.12
  19. Design of Communication System of Meso-scale Auto Weather Station,P415.12
  20. Doppler weather radar based windshear prediction,P415.2
  21. A Research on the Application of Graphic Query System for Data from Automatic Weather Stations,P415.12

CLC: > Astronomy,Earth Sciences > Atmospheric science (meteorology ) > Atmospheric sounding ( meteorological observations ) > Weather radar
© 2012 www.DissertationTopic.Net  Mobile