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Pulsed radar with multispectral modulation to reduce interference, increase prf, and improve doppler velocity measurement

a multi-spectral modulation, pulse radar technology, applied in the direction of reradiation, measurement devices, instruments, etc., can solve the problems of inability to have a high pulse repetition frequency, limited current radar system, ghosting, etc., and limit the ability of radar to detect objects

Active Publication Date: 2022-01-13
KESNAT LLC
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  • Claims
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AI Technical Summary

Benefits of technology

The patent describes a pulse radar system and method that solves the problem of long range unambiguous image reflections, high pulse repetition frequency, long range high resolution radial velocity, improved signal sensitivity, and strong in-band interference rejection. The system achieves this by creating pulses that are easily separated when received, and using a modulation signal that changes with each pulse. The system can also dynamically change the modulation type to enhance ranging accuracy. Additionally, the system uses the modulation signal to eliminate doppler dilemma and improve ranging accuracy. These technical effects make the pulse radar system more efficient and effective in high-frequency and long-range applications.

Problems solved by technology

The current radar systems are limited by their inability to have a high pulse repetition frequency (PRF) and unambiguously detect objects that are at a large distance.
The false, or ghost, return presents a serious limit on how well the radar will detect objects.

Method used

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  • Pulsed radar with multispectral modulation to reduce interference, increase prf, and improve doppler velocity measurement
  • Pulsed radar with multispectral modulation to reduce interference, increase prf, and improve doppler velocity measurement
  • Pulsed radar with multispectral modulation to reduce interference, increase prf, and improve doppler velocity measurement

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Embodiment Construction

[0009]In view of the foregoing background, it is therefore an object of the non-limiting exemplary embodiment(s) to provide a pulse radar system and method that has long range unambiguous image reflections at high pulse repetition frequency (PRF), long range high resolution radial velocity not limited by Doppler Nyquist limiting, improved signal sensitivity, and strong in-band interference rejection, thereby improving existing radar by increasing the transmission pulse rate by uniquely tagging each outgoing pulse so they can be easily separated when received. These and other objects, features, and advantages of the non-limiting exemplary embodiment(s) are provided by a pulse radar system including a pulse generator located at a first location and configured to create at least one pulse having a modulation signal and a carrier signal. Such a modulation signal is configured to be changed with each successive one of the at least one pulse such that the at least one pulse is easily sepa...

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Abstract

A pulse radar system and method has long range unambiguous image reflections at high pulse repetition frequency (PRF), long range high resolution radial velocity not limited by Doppler Nyquist limiting, improved signal sensitivity, and strong in-band interference rejection, thereby improving existing radar by increasing the transmission pulse rate by uniquely tagging each outgoing pulse so they can be easily separated when received.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is a non-provisional patent application that claims priority to and benefit of U.S. provisional patent application No. 63 / 051,143 filed Jul. 13, 2020, which is incorporated by reference herein in its entirety.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.REFERENCE TO A MICROFICHE APPENDIX[0003]Not Applicable.BACKGROUNDTechnical Field[0004]Exemplary embodiment(s) of the present disclosure relate to pulse radar systems and, more particularly, to a pulse radar system and method that has long range unambiguous image reflections at high pulse repetition frequency (PRF), long range high resolution radial velocity not limited by Doppler Nyquist limiting, improved signal sensitivity, and strong in-band interference rejection, thereby improving existing radar by increasing the transmission pulse rate by uniquely tagging each outgoing pulse so they can be easily separated when received.Prior Art[0005]The c...

Claims

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Application Information

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IPC IPC(8): G01S7/282G01S13/58G01S7/02
CPCG01S7/282G01S13/581G01S7/0234G01S7/0232G01S7/023G01S13/284G01S13/282G01S13/24G01S7/006
Inventor TANSEK, DAVID
Owner KESNAT LLC
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