Radar Hardware

Radar Hardware

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This section describes two of the most important specifications concerning the microwave signals pertinent to pulse Doppler radars: coherency; and close-to-carrier noise. Also, an introduction will be provided to the devices that can be used as sources of microwave signals. Radars use microwave oscillators and synthesizers as a source of transmitted power or for providing low-power drive signals for amplification in a master oscillator power amplifier (MOPA) type transmitter. RF and microwave signals also act as local oscillators (LOs) within a superheterodyne receiver and provide digital clocking and timing signals. Most radar systems have one fundamental oscillator from which all other signals are derived. This ensures that any drift in the oscillator frequency, such as due to temperature changes, cause a compensating drift in all other signals such that all signals remain coherent with each other.

Chapter Contents:

  • 8.1 Introduction
  • 8.2 Radar Transmitters
  • 8.3 Frequency Synthesizers
  • 8.4 Radar Receivers
  • 8.5 Radar Antennas and Arrays

Inspec keywords: microwave oscillators; radar transmitters; microwave receivers; low-power electronics; radar receivers; microwave power amplifiers; signal synthesis; clocks; Doppler radar

Other keywords: timing signal; MOPA; master oscillator power amplifier; superheterodyne receiver; pulse Doppler radar hardware; microwave oscillator; RF signal; local oscillator; digital clocking; radar transmitter; LO; low-power drive signal; microwave signal; close-to-carrier noise; microwave synthesizer

Subjects: Radar equipment, systems and applications; Microwave circuits and devices; Other digital circuits; Amplifiers; Signal processing and detection; Oscillators

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