JPS57154081A - Pulse doppler radar device mounted on airplane - Google Patents

Pulse doppler radar device mounted on airplane

Info

Publication number
JPS57154081A
JPS57154081A JP56040135A JP4013581A JPS57154081A JP S57154081 A JPS57154081 A JP S57154081A JP 56040135 A JP56040135 A JP 56040135A JP 4013581 A JP4013581 A JP 4013581A JP S57154081 A JPS57154081 A JP S57154081A
Authority
JP
Japan
Prior art keywords
shifting
prf
thetaa
airplane
radar device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56040135A
Other languages
Japanese (ja)
Other versions
JPH0136076B2 (en
Inventor
Tetsuo Kirimoto
Yoshimasa Ohashi
Tomomasa Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56040135A priority Critical patent/JPS57154081A/en
Publication of JPS57154081A publication Critical patent/JPS57154081A/en
Publication of JPH0136076B2 publication Critical patent/JPH0136076B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To enlarge the angular range of scanning of an antenna beam by shifting a pulse repetition frequency according to the scanning angle of the antenna beam in a pulse Doppler radar device wherein a moving target is detected by using a phased array antenna. CONSTITUTION:The beam steering direction thetaa obtained from a beam direction indicating unit 3 is supplied to a pulse repetition frequency (PRF) shifting unit 17. Then, a value DELTAfw expressed by the formula is calculated in the shifting unit 17 and a trigger signal of a transmitter 4 is formed so that PRF larger than the value obtained from calculation is obtained, whereby the transmitter 4 is controlled for shifting. By this constitution, a transmission pulse signal is emitted with an appropriate value of PRF in synchronization with a beam scanning angle thetaa and thereby a target is detected. In the formula, Vs is the flying velocity of the airplane, lambda is the wavelength of a transmitted wave, and DELTAthetaw (0) is the beam-width of a phased array antenna when thetaa equal 0.
JP56040135A 1981-03-19 1981-03-19 Pulse doppler radar device mounted on airplane Granted JPS57154081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56040135A JPS57154081A (en) 1981-03-19 1981-03-19 Pulse doppler radar device mounted on airplane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56040135A JPS57154081A (en) 1981-03-19 1981-03-19 Pulse doppler radar device mounted on airplane

Publications (2)

Publication Number Publication Date
JPS57154081A true JPS57154081A (en) 1982-09-22
JPH0136076B2 JPH0136076B2 (en) 1989-07-28

Family

ID=12572344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56040135A Granted JPS57154081A (en) 1981-03-19 1981-03-19 Pulse doppler radar device mounted on airplane

Country Status (1)

Country Link
JP (1) JPS57154081A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064333A (en) * 1995-05-09 2000-05-16 Telefonatkiebolaget Lm Ericsson Phased array radar system for tracking
JP2010281689A (en) * 2009-06-04 2010-12-16 Toshiba Corp Radar system and radar signal processing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064333A (en) * 1995-05-09 2000-05-16 Telefonatkiebolaget Lm Ericsson Phased array radar system for tracking
JP2010281689A (en) * 2009-06-04 2010-12-16 Toshiba Corp Radar system and radar signal processing method

Also Published As

Publication number Publication date
JPH0136076B2 (en) 1989-07-28

Similar Documents

Publication Publication Date Title
CN104865567B (en) Missile-borne frequency modulation continuous wave off-target measurement radar system
JP2930724B2 (en) Area monitoring method and apparatus for implementing the method
GB1505325A (en) Missile guidance system
KR850008526A (en) Track estimation method and device
US4635240A (en) Sonar navigation system
US4253098A (en) Radar systems
US3473162A (en) Radio observation apparatus utilizing a return beam
US4193074A (en) Enhancing radar returns from targets having a small radar cross section
JPS57154081A (en) Pulse doppler radar device mounted on airplane
JP2595354B2 (en) Radar equipment
US3670334A (en) Attitude control system
GB2092749A (en) Detecting obstacles to vehicles
JPS61193088A (en) Synthetic aperture radar equipment
JPS58223770A (en) Synthetic aperture radar device
JPS57125868A (en) Side looking aperture radar
EP0276530B1 (en) Millimeter wave length guidance system
JPS57108780A (en) Tracking radar device
JPS5661670A (en) Synthetic aperture radar device
US3745574A (en) Radar telemetring system
US2965895A (en) Two antenna airborne moving target search radar
JPS5518986A (en) Target angle measurement of radar
JPH0142392B2 (en)
JPS5554481A (en) Bistatic radar system
JPS5750668A (en) Pulse radar system
JPS5554482A (en) Bistatic radar system