RU99114439A - METHOD FOR SINGLE-CHANNEL RADIO DETECTING OF QUASIGHARMONIC SIGNALS WITH THE MINIMUM NUMBER OF MOVABLE UNDIRECTED ANTENNA ELEMENTS AND A DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD FOR SINGLE-CHANNEL RADIO DETECTING OF QUASIGHARMONIC SIGNALS WITH THE MINIMUM NUMBER OF MOVABLE UNDIRECTED ANTENNA ELEMENTS AND A DEVICE FOR ITS IMPLEMENTATIONInfo
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- RU99114439A RU99114439A RU99114439/09A RU99114439A RU99114439A RU 99114439 A RU99114439 A RU 99114439A RU 99114439/09 A RU99114439/09 A RU 99114439/09A RU 99114439 A RU99114439 A RU 99114439A RU 99114439 A RU99114439 A RU 99114439A
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- RU
- Russia
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- 241001442055 Vipera berus Species 0.000 claims 14
- 230000000875 corresponding Effects 0.000 claims 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 4
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- 235000004431 Linum usitatissimum Nutrition 0.000 claims 3
- 240000006240 Linum usitatissimum Species 0.000 claims 3
- 230000000051 modifying Effects 0.000 claims 3
- 230000003321 amplification Effects 0.000 claims 2
- 238000005056 compaction Methods 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 206010007559 Cardiac failure congestive Diseases 0.000 claims 1
- 241000218657 Picea Species 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
Claims (3)
где множество пар сигналов определяется фазами Ψ1, Ψ2, Ψ3, Ψ4, которые связаны соотношениями:
при этом сигналы в парах обладают на интервале времени То одновременно взаимной частотной ортогональностью между компонентами с разными частотами и взаимной фазовой ортогональностью между компонентами с одинаковыми частотами, причем такой, что направления фазовых сдвигов для обеспечения фазовой ортогональности между компонентами с одинаковыми частотами имеют противоположный характер для компонент с разными частотами, а на интервале времени Т= 2То - временной ортогональностью такой, что направления фазовых сдвигов для обеспечения фазовой ортогональности между компонентами с одинаковыми частотами имеют противоположный характер для компонент с одинаковыми частотами.1. The method of single-channel direction finding of quasi-harmonic signals with a minimum number of fixed non-directional antenna elements or four signals from four non-directional antenna elements located at the same distance from each other along a circle of radius R <λ / 4, where λ is the wavelength of the signal, or five signals, where the fifth additional signal comes from an omnidirectional antenna element located in the center of the circle, and using one standard sequence of operations for ylene, frequency selection and either a frequency demodulation, or amplitude demodulation based on sequential execution of ordering step, the forming of the four signals from the antenna elements arranged in a circle, an ordered system of two ordered pairs P i, i = l, 2, signals thus that each pair of signals P i corresponds to the two antenna elements disposed on a line passing through the center of the circle, and the order of the signals in the pair determines the direction corresponding line, an operation and compacting phase, the forming of an ordered system of two ordered pairs P i signals and two ordered control orthogonal to, i = l, 2 f i (t) T signal time interval modulated in phase resulting signal whose phase comprises a densified form the ordered values of the phase differences Φ i of the signals included in a certain order in the corresponding ordered pair P i , in the form of the sum where a i is the proportionality coefficient, or the compression operation in amplitude, forming from an ordered system of two ordered pairs of P i signals, two ordered control orthogonal signals f i (t) and the fifth additional signal, the amplitude-modulated resulting signal, the amplitude of which contains in the compressed the form of the value of the phase differences Φ i in the form of a sum where b i is the coefficient of proportionality, one standard sequence of operations of amplification, frequency selection and or frequency demodulation, forming an output signal in the form of a sum where c i is the proportionality coefficient, f ' i (t) is the time derivative of the function f i (t), or amplitude demodulation, forming a signal in the form of a sum where d i is the coefficient of proportionality, decompression operation, forming in a time equal to the orthogonality interval T, from the signal from the operation of either frequency demodulation or amplitude demodulation, and two ordered control signals f i (t), pre-adjusted in phase to compensate phase shifts that occur when performing one standard sequence of operations of amplification, frequency selection and either frequency demodulation or amplitude demodulation, two output I drove u 1 and u 2, are proportional to the phase difference Φ 1 and Φ 2, respectively, calculating the operation angle of arrival of the quasi-harmonic signal by the value of the arctangent of the ratio u 2 / u 1, characterized in that the ordered control signals f i (t) is used orderly a pair of signals from a plurality of ordered pairs of orthogonal signals, in which each ordered pair contains signals representing the sum of two harmonic oscillations with frequencies Ω 1 and Ω 2 and having the form
where the set of pairs of signals is determined by the phases Ψ 1 , Ψ 2 , Ψ 3 , Ψ 4 , which are related by the relations:
the signals in pairs on the time interval T o have simultaneously mutual frequency orthogonality between components with different frequencies and mutual phase orthogonality between components with the same frequencies, and such that the directions of phase shifts to ensure phase orthogonality between components with the same frequencies are opposite for component with different frequencies, and on the time interval T = 2T about - time orthogonality such that the direction of the phase shifts to ensure f The basic orthogonality between components with the same frequencies is the opposite for components with the same frequencies.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU99114439A RU2210088C2 (en) | 1999-07-01 | 1999-07-01 | Method of single-channel radio direction finding of quasiharmonic signals with minimal number of immobile omnidirectional antenna elements and facility for its realization |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU99114439A RU2210088C2 (en) | 1999-07-01 | 1999-07-01 | Method of single-channel radio direction finding of quasiharmonic signals with minimal number of immobile omnidirectional antenna elements and facility for its realization |
Publications (2)
Publication Number | Publication Date |
---|---|
RU99114439A true RU99114439A (en) | 2001-05-20 |
RU2210088C2 RU2210088C2 (en) | 2003-08-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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RU99114439A RU2210088C2 (en) | 1999-07-01 | 1999-07-01 | Method of single-channel radio direction finding of quasiharmonic signals with minimal number of immobile omnidirectional antenna elements and facility for its realization |
Country Status (1)
Country | Link |
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RU (1) | RU2210088C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2504731C1 (en) * | 2012-07-17 | 2014-01-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный электротехнический университет "ЛЭТИ" им. В.И. Ульянова (Ленина) | Acousto-optical interferometer |
-
1999
- 1999-07-01 RU RU99114439A patent/RU2210088C2/en not_active IP Right Cessation
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