Frequency Modulation Ranging in High PRF

Frequency Modulation Ranging in High PRF

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Other forms of modulation also increase the signal bandwidth and enable range to be measured. Phase and/or frequency modulation (FM) may be imparted onto a CW signal for the measurement of range. In much the same way as pulsed modulation allows the time delay between the transmission of the signal and the reception of a target return to be established, so, too, does the use of phase or frequency modulation. The most commonly used form of modulation is a linear frequency modulation (LFM), and it gives rise to FM ranging in CW systems and high pulse repetition frequency (PRF) pulsed radars.

Chapter Contents:

  • 10.1 Frequency Modulation Ranging in Continuous Wave Systems
  • 10.2 FM Ranging in Pulsed Systems
  • References

Inspec keywords: frequency modulation; CW radar

Other keywords: CW systems; target return reception; LFM; signal transmission; high-PRF; time delay; linear frequency modulation; CW signal; frequency modulation ranging; signal bandwidth; high-pulse repetition frequency pulsed radars; range measurement; pulsed modulation

Subjects: Radar equipment, systems and applications; Modulation and coding methods

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