RU2011105671A - Method for detecting single-circuit parametric diffusers with nonlinear formation of the synchronizing signal - Google Patents

Method for detecting single-circuit parametric diffusers with nonlinear formation of the synchronizing signal Download PDF

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Publication number
RU2011105671A
RU2011105671A RU2011105671/07A RU2011105671A RU2011105671A RU 2011105671 A RU2011105671 A RU 2011105671A RU 2011105671/07 A RU2011105671/07 A RU 2011105671/07A RU 2011105671 A RU2011105671 A RU 2011105671A RU 2011105671 A RU2011105671 A RU 2011105671A
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frequency
pulse
radio
auxiliary
sequence
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RU2011105671/07A
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Russian (ru)
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RU2496122C2 (en
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Николай Юрьевич Бабанов (RU)
Николай Юрьевич Бабанов
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Государственное образовательное учреждение высшего профессионального образования "Нижегородский государственный инженерно-экономич
Государственное образовательное учреждение высшего профессионального образования "Нижегородский государственный инженерно-экономический институт"
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Priority to RU2011105671/07A priority Critical patent/RU2496122C2/en
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Abstract

 A method for detecting single-circuit parametric scatterers with non-linear generation of a synchronizing signal, which consists in the fact that a single-circuit parametric scatterer is preliminarily placed on the search object, the region of space in which the search object can be located is irradiated with a probing signal, which forms a sequence of packets as a result of parametric generation in the single-circuit parametric scatterer narrow-band coherent radio pulses of the response signal, with each packet corresponds to a code word, and each radio pulse of the burst corresponds to a symbol of the selected coding law, which is a binary sequence, the elements of which correspond to different values of the phase of the high-frequency filling of the radio pulses π, for this the probing signal includes a sequence of packets of narrow-band coherent rectangular radio pulses of a pump signal with a high-frequency filling frequency f and pulse duration τ, in addition, the probe signal includes a sequence narrow-band coherent auxiliary 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 the auxiliary radio pulse corresponds to the current ordinal symbol of the selected binary coding law, and the leading edge of the auxiliary radio pulse coincides with or exceeds the leading edge of the pump pulse for a time not exceeding τ1, an additional radiation is emitted before or after the auxiliary radio pulse

Claims (1)

  1. A method for detecting single-circuit parametric scatterers with non-linear generation of a synchronizing signal, which consists in the fact that a single-circuit parametric scatterer is preliminarily placed on the search object, the region of space in which the search object can be located is irradiated with a probing signal, which forms a sequence of packets as a result of parametric generation in the single-circuit parametric scatterer narrow-band coherent radio pulses of the response signal, with each packet corresponds to a code word, and each radio pulse of the burst corresponds to a symbol of the selected coding law, which is a binary sequence, the elements of which correspond to different values of the phase of the high-frequency filling of the radio pulses π, for this the probing signal includes a sequence of packets of narrow-band coherent rectangular radio pulses of a pump signal with a high-frequency filling frequency f and pulse duration τ, in addition, the probe signal includes a sequence narrow-band coherent auxiliary radio pulses with a high-frequency filling frequency f 1 and a radio pulse duration of τ 1 , while τ 1 is significantly shorter than τ, the high-frequency filling phase of the auxiliary radio pulse corresponds to the current ordinal symbol of the selected binary coding law, and the leading edge of the auxiliary radio pulse coincides with the leading edge of the pump pulse or ahead of it at the time, not exceeding τ 1, before or after the auxiliary radio pulse emitted additional An additional radio pulse having the same amplitude and frequency of high-frequency filling as the auxiliary radio pulse, the time interval from the leading edge of the first pulse of the pair of auxiliary and additional radio pulses to the trailing edge of the second pulse of this pair is always less than τ, and a sequence of narrow-band coherent radio pulses of the response signal with the frequency a high-frequency filling equal to the frequency of parametric generation of the parametric scatterer 0.5f, while I coherent accumulation according to an algorithm that provides the maximum level of coherent accumulation corresponding to the selected coding law, when the detection threshold is exceeded, a decision is made about the presence of a search object in the detection zone, characterized in that the frequency of high-frequency filling of auxiliary radio pulses f 1 is 0.25f, the duration of the additional radio pulse τ 2 is the radio pulse duration τ auxiliary 1, auxiliary phase high-frequency radio pulse for alternatives th binary symbol of the selected binary coding law differ by π / 2, the phase of the high-frequency additional rf pulse differs from the phase of the auxiliary high-frequency rf pulse to π / 2.
RU2011105671/07A 2011-02-15 2011-02-15 Method of detecting single-loop parametric scatterers with nonlinear generation of synchronising signal RU2496122C2 (en)

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RU2011105671/07A RU2496122C2 (en) 2011-02-15 2011-02-15 Method of detecting single-loop parametric scatterers with nonlinear generation of synchronising signal

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Application Number Priority Date Filing Date Title
RU2011105671/07A RU2496122C2 (en) 2011-02-15 2011-02-15 Method of detecting single-loop parametric scatterers with nonlinear generation of synchronising signal

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RU2011105671A true RU2011105671A (en) 2012-08-20
RU2496122C2 RU2496122C2 (en) 2013-10-20

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* 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
US5486830A (en) * 1994-04-06 1996-01-23 The United States Of America As Represented By The United States Department Of Energy Radar transponder apparatus and signal processing technique
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.
RU2413242C2 (en) * 2009-05-12 2011-02-27 Сергей Викторович Ларцов Method of detecting single-loop parametric scatterers

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