Download Principles of Synthetic Aperture Radar Imaging: A System by Kun-Shan Chen PDF

By Kun-Shan Chen

Principles of artificial Aperture Radar Imaging: A method Simulation Approach demonstrates using photo simulation for SAR. It covers a number of the functions of SAR (including characteristic extraction, objective category, and alter detection), presents a whole knowing of SAR ideas, and illustrates the full chain of a SAR operation.

The publication areas exact emphasis on a ground-based SAR, but in addition explains house and air-borne platforms. It includes chapters on sign speckle, radar-signal versions, sensor-trajectory types, SAR-image focusing, platform-motion reimbursement, and microwave-scattering from random media.

While discussing SAR photograph focusing and movement reimbursement, it provides processing algorithms and functions that function extraction, aim category, and alter detection. It additionally offers samples of simulation on a number of eventualities, and contains simulation flowcharts and effects which are distinct during the booklet.

Introducing SAR imaging from a platforms viewpoint, the writer:

  • Considers the new improvement of MIMO SAR technology
  • Includes chosen GPU implementation
  • Provides a numerical research of process parameters (including systems, sensor, and picture focusing, and their influence)
  • Explores wave-target interactions, sign transmission and reception, photograph formation, movement compensation
  • Covers all platform movement reimbursement and mistake research, and their impression on ultimate picture radiometric and geometric quality
  • Describes a ground-based SFMCW system

Principles of man-made Aperture Radar Imaging: A procedure Simulation Approach is devoted to the use, examine, and improvement of SAR structures. The publication specializes in photo formation or focusing, treats platform movement and picture focusing, and is appropriate for college students, radar engineers, and microwave distant sensing researchers.

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Additional resources for Principles of Synthetic Aperture Radar Imaging: A System Simulation Approach

Sample text

When the resolution approaches zero (ideal), hSAR(x, R) becomes a delta function, which perfectly reconstructs the target reflectivity. Also, in defining the above function, we ignore the range migration effect such that the range and slow time are linearly related. Of course, this assumption is only for easy discussion to grasp the SAR operation concept. 64) where n(x, R) is the system noise. 56 is a function of slow time η, Rn ( η) = R0 + ∂R0 ∂2 R0 ( η − η0 ) + ( η − η0 )2 / 2 + .... 65) ∂η ∂η2 where the second term on the right-hand side is related to Doppler frequency, while the third term is related to the Doppler rate.

1). 26, it is necessary to know the antenna footprint or the illuminated area A. At backscattering, the transmitting and receiving antenna patterns projected onto the target that they extended is assumed to be completely overlaid. This is true when one antenna is used for both transmitting and receiving. For a bistatic or multiple-input multiple-output (MIMO) SAR system, the common illuminated area confined by the transmitting and receiving antenna should be considered for more precise estimation of the scattering coefficient.

65) λ λ λ 2λR0 where α is the angle between the velocity vector and slant range. u cos α is commonly termed the radial velocity. 65 is a constant phase, while the second term is a linear phase. The third term is a quadratic phase varying as a squared velocity. It is this phase term for which the 15 Preliminary Background motion compensation is a major concern. 67) 8λR0 16 δ 2az We see from the above relation that the higher the resolution, the larger the quadratic phase that is induced—posing a challenge work for focusing well.

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