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Synthetic Aperture Radar (SAR, iSAR)

SkyRadar's SAR system builds on the FMCW base module. Set on a linear high-precision conveyor, driven by a servo motor and controlled with an industrial drive system, it produces a variable number of radar images which are aggregated in a time-multiplex approach. 

 

General Features

SkyRadar FMCW SAR Hardware Features

Synthetic Aperture Radar (SAR) hardware setup, with servo controlled movement of the antenna on a linear rail.

  • Synthetic Aperture Radar (SAR) hardware setup, with step-motor driven the radar (FMCW) on a 2050 mm linear rail .
  • Phased-Array through a 2-segment patch antenna Default operation in at 24 GHz.

SkyRadar FMCW SAR Software Features

  • Wireless communication between Radar element and computers or CloudServer.
  • A –Scope, B-Scope with time-scale on the x-axis.
  • Very high resolution of the radar image through synthetic aperture image generation.

Stepper Motor

 A high precision brushless DC servo motor with integrated controller (stepper) actuates the linear drive.

high precision brushless DC servo motor with integrated controller (stepper)

Operating Voltage 12 V DC - 48 V DC
Peak Current (RMS) 6.3 A
Type Digital Inputs 24V, 5/24 V switchable
Type Analog Input 0-10 V
Type Digital Output Open-Drain (30 V max.)
Size 56 mm
Interface USB
Holding Torque 110 Ncm
Rated Current (RMS) 4.2 A
Number of Digital Inputs 6
Number of Analog Inputs 1
Digital Outputs 1
Encoder Resolution 1024 Cycles per Revolution
Weight 0,8 kg

 Table : Operative characteristics of the servo motor 

 

Linear Conveyor

The linear conveyor creates the defined and highly precise displacement, allowing the radar to shoot shifted images that will be aggregated into one high resolution images in a subsequent time-multiplex principle.

SAR Linear Conveyor

 
Length                           2,050 mm
Width 315 mm
Height approx. 850 mm
Required Space approx. 2,400 mm x 800 mm
Track Gauge 97 mm
Weight 5.6 Kg
Traverse Path 1,700 mm
Feed (1/U) 75,36 mm

 Table : Operative characteristics of the linear conveyor