RU2010136607A - Method for detecting two-circuit parametric diffusers - Google Patents

Method for detecting two-circuit parametric diffusers Download PDF

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Publication number
RU2010136607A
RU2010136607A RU2010136607/07A RU2010136607A RU2010136607A RU 2010136607 A RU2010136607 A RU 2010136607A RU 2010136607/07 A RU2010136607/07 A RU 2010136607/07A RU 2010136607 A RU2010136607 A RU 2010136607A RU 2010136607 A RU2010136607 A RU 2010136607A
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RU
Russia
Prior art keywords
frequency
radio
pulse
parametric
sequence
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RU2010136607/07A
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Russian (ru)
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RU2455659C2 (en
Inventor
Николай Юрьевич Бабанов (RU)
Николай Юрьевич Бабанов
Александр Сергеевич Корсаков (RU)
Александр Сергеевич Корсаков
Сергей Викторович Ларцов (RU)
Сергей Викторович Ларцов
Иван Сергеевич Ларцов (RU)
Иван Сергеевич Ларцов
Original Assignee
Сергей Викторович Ларцов (RU)
Сергей Викторович Ларцов
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Priority to RU2010136607/07A priority Critical patent/RU2455659C2/en
Publication of RU2010136607A publication Critical patent/RU2010136607A/en
Application granted granted Critical
Publication of RU2455659C2 publication Critical patent/RU2455659C2/en

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Abstract

 A method for detecting double-circuit parametric scatterers, which consists in the fact that a double-circuit parametric scatterer with parametric generation frequencies f1 and f2 is preliminarily placed on the search object, the region of space in which the search object can be located is irradiated with a probe signal, which forms as a result of parametric generation on the parametric diffuser a sequence of packets of narrowband coherent radio pulses of the scattered signal, with each packet corresponding to In fact, each radio pulse of a burst corresponds to a symbol of the selected coding law, which is a binary sequence, the elements of which correspond to π differing values of the phase of high-frequency filling of radio pulses, for this the probing signal includes a sequence of packs of narrow-band coherent rectangular radio pulses of a pump signal with a frequency of high-frequency filling f = f1 + f2 and pulse duration τ, in addition, the probing signal includes a sequence of narrow-band coherent synchronizing radio pulses with a high-frequency filling frequency f1 and a radio pulse duration τ1, while τ1 is much shorter than τ, the high-frequency filling phase of a synchronizing radio pulse corresponds to the current ordinal symbol of the selected manipulation law, and the leading edge of the synchronizing pulse coincides with the leading edge of the pump pulse or is ahead of it by time not exceeding τ1, and the sequence of narrow-band coherent radio pulses of the scattered signal with

Claims (1)

  1. A method for detecting double-circuit parametric scatterers, which consists in the fact that a double-circuit parametric diffuser with parametric generation frequencies f 1 and f 2 is preliminarily placed on the search object, the region of space in which the search object can be located is irradiated with a probe signal, which forms as a result of parametric generation on a parametric scatterer, a sequence of packets of narrow-band coherent radio pulses of a scattered signal, each packet corresponding to a codeword, and each radio pulse of the packet corresponds to a symbol of the selected coding law, which is a binary sequence, the elements of which correspond to π differing values of the phase of high-frequency filling of the radio pulses, for this the probing signal includes a sequence of packs of narrow-band coherent rectangular radio pulses of a pump signal with a frequency of high-frequency filling f = f 1 + f 2 and pulse duration τ, in addition, the probing signal includes a narrow-field sequence axial coherent synchronizing radio pulses with a high-frequency filling frequency f 1 and a radio pulse duration of τ 1 , with τ 1 being significantly less than τ, the high-frequency phase of the synchronizing radio pulse filling corresponds to the current ordinal symbol of the selected manipulation law, and the leading edge of the synchronizing pulse coincides with or is ahead of the leading edge of the pump pulse it for a time not exceeding τ 1 , and the sequence of narrow-band coherent radio pulses of the scattered signal with the frequency of high-frequency filling equal to the frequency of parametric generation of the parametric scatterer f 2 , while coherent accumulation is performed according to an algorithm that provides the maximum level of coherent accumulation corresponding to the selected law of manipulation, when the detection threshold is exceeded, a decision is made about the presence of a search object in the detection zone, characterized in that after the synchronizing radio pulse, a compensating radio pulse is emitted, having the same as that of the synchronizing radio pulse amplitude and frequency of the high-frequency, and duration τ 2 equal overlap time synchronizing radio impulse radio pulse and the pump, wherein the phase compensating the high-frequency radio pulse differs by π from the phase of the high-frequency synchronizing radio pulse.
RU2010136607/07A 2010-08-31 2010-08-31 Method of detecting double-loop parametric scatterers RU2455659C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2010136607/07A RU2455659C2 (en) 2010-08-31 2010-08-31 Method of detecting double-loop parametric scatterers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2010136607/07A RU2455659C2 (en) 2010-08-31 2010-08-31 Method of detecting double-loop parametric scatterers

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
RU2009118092/09A Division RU2413242C2 (en) 2009-05-12 2009-05-12 Method of detecting single-loop parametric scatterers

Publications (2)

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RU2010136607A true RU2010136607A (en) 2012-03-10
RU2455659C2 RU2455659C2 (en) 2012-07-10

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757315A (en) * 1986-02-20 1988-07-12 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for measuring distance
RU94036233A (en) * 1994-09-28 1996-07-20 С.А. Бахарев Device for detecting and direction finding of low-frequency hydroacoustic radiations
RU2145424C1 (en) * 1999-06-21 2000-02-10 Воронежское конструкторское бюро антенно-фидерных устройств Method of detection of object ( versions )
ITMO20040244A1 (en) * 2004-09-24 2004-12-24 Meta System Spa 'obstacle detection system and method in particular for vehicle parking facilitation systems'.
RU2336538C2 (en) * 2006-06-28 2008-10-20 Сергей Викторович Ларцов Non-linear passive marker-parameter diffuser
FR2936389A1 (en) * 2008-09-23 2010-03-26 Univ Paris 13 System and method for detecting at least one object carrying a marker.

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