SkyRadar Base Module

Multi-Modal Radar Module

At the heart of the system, an miniaturized S-band radar transmits and receives radar signals in a distance of 10 -50 m. The radar includes the typical components such as Local Oscillator, Driver, Modulator and Power Amplifier and Parabolic Antenna on the transmitter side. On the receiver side it includes the Sensitive Time Constant STC and filters, the Low Noise Amplifier LNA, the Receiver Rx and the Mixer, providing the I and Q signals. 

The transmitter can emit very short pulses through the antenna and monitor the reflected pulses. The pulses are reflected of fixed objects (buildings, trees…) and moving objects (cars, people…) which pass the antenna beam. Emission Power, Pulse Width, Filters, as well as the Frequency can be varied.

The IQ signals are AD-converted and digitally processed using a Digital Signal Processor (DSP), data is visualized through the analysis and visualization software by SkyRadar. 

General Features

  • Active radar, designed for perfectly save outside operation (e.g. through an open window).
  • Modes
    • Pulse
    • FMCW
    • Doppler
    • CW
  • The system allows for
    • Antenna measurements, gain, beampointing
    • Reflection measurements, recordings and analysis
    • Vector measurements I/Q
    • Moving Target Indicator
    • Clutter processing
    • Doppler filters
    • Pulse compression
  • Antenna
  • 100+ concurrent students can work on it
    • CloudServer reads the IQ data and passes it via LAN or WIFI to the computers
    • FreeScopes provides A-Scopes, B-Scopes, PPI-Scopes, filters and amplifiers as well as more complex signal treatment like MTI.
  • Optional: Programmable S-Band Signal Generator to simulate echos, targets, and clutter.

 

System Features

The signal conversion chain of the Pulse Radar Module is like in a real operational radar.
Many measurement sockets allow for profound analysis of the signals throughout their conversion with an oscilloscope
(not part of the deliverables).

Pulse-Radar-Signal-Conversion-Chain

Figure: The signal conversion chain of the Pulse Radar Module.

Peak Output Power Approx. + 36 dBm
Pulse Width 20 ns to 500 ns in 10 ns steps
Maximum Range with parabolic reflector more than 300 m
Operating Frequency S-Band, 2.25 GHz to 2.73 GHz
PRF 10.04 Hz to 101.73 Hz in 7 discrete steps
Burst mode 8 pulses per cycle
Dimensions without antenna: 502 mm x 400 mm x 188 mm
Net Weight 15 kg
Power Supply Universal, 100 V to 240 V, 110 W max

 

Antenna Features

Antenna Gain 27 dBi
Frequency range 2.4 GHz to 2.8 GHz
VSWR Better than 2.0:1
Max. power 10 W
Polarisation Linear
E-plane 3 dB beamwidth 11° (+- 5°)
H-plane 3 dB beamwidth   8° (+- 5°)
Dimensions 900 mm x 700 mm
Weight 3.3 kg

Table: General operative characteristics of the Antenna