WO2014123451A1 - Procédé de modulation-démodulation intra-impulsions avec étalement de spectre direct - Google Patents
Procédé de modulation-démodulation intra-impulsions avec étalement de spectre direct Download PDFInfo
- Publication number
- WO2014123451A1 WO2014123451A1 PCT/RU2013/001049 RU2013001049W WO2014123451A1 WO 2014123451 A1 WO2014123451 A1 WO 2014123451A1 RU 2013001049 W RU2013001049 W RU 2013001049W WO 2014123451 A1 WO2014123451 A1 WO 2014123451A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frequency
- signal
- pulse
- noise
- modulated
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001228 spectrum Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000010355 oscillation Effects 0.000 claims abstract description 10
- 230000003595 spectral effect Effects 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
Definitions
- the method of intrapulse modulation-demodulation with direct expansion of the spectrum The invention relates to methods of modulation-demodulation of discrete (digital) signals and can be used in electrical radio communications, location, telemetry, telephony and other fields.
- noise-like envelope of pulsed signals which in this case are broadband signals (SHPS) or signals with a large base
- the first is due to the impossibility of increasing the signal base to infinity
- N (NoW) -MonraocTb noise in the channel bandwidth [W];
- the physical reason for the existence of the Shannon boundary and the maximum minimum value of energy inefficiency is the complete or partial overlap (cross) of the spectra of useful and interfering (noise) signals when they are processed in the receiving part of the information transmission channel.
- the present invention is to develop a method of modulation-demodulation of signals, allowing demodulation of a mixture of signal with noise, while eliminating the crossing of their spectra, to the extent that
- the solution of the problem in relation to the stage of modulation sigala (synthesis sigala) is carried out by presenting information pulse signal with a pulse signal with an envelope, described by a function with a limited spectrum, having, at one or several of its intervals, oscillations with a frequency exceeding the cutoff frequency of the spectrum of the synthesized signal (frequency spikes) .
- the parameters of these oscillations amplitude, frequency, phase , separately or in various combinations put in accordance with the informative sign of the signal a to be transmitted.
- the solution of the problem at the receiving side when processing the received mixture of useful and interfering signals, is carried out in two stages. At the first stage, the signal mixture with noise is processed necessary for
- the time-frequency processing of the signal mixture with noise in the frequency band corresponding to the elementary signal is performed, which is a gap containing a frequency surge.
- This processing includes splitting the received signal mixture with noise into a series of elementary pulses with a duration equal to second duration with the interval frequency of ejection, with
- the spectral diagram on the axes of the frequency-modulus of the spectral density which is the final result of the calculation, and which shows the pseudovectors of the spectra of all analyzed elementary pulse signals within the duration of the modulated signal a, shown in Fig.
- rfle positions (8,9,10) denote the pseudovectors of the spectra of elementary pulse signals partially overlapping with the gap containing the frequency spike, and the position (11) marks the pseudovector of the elementary pulse, combined with the frequency ejection gap for sure.
- the obtained result demonstrates the reliable separation of the gap with the frequency surge and,
- R is the information transfer rate, [bit / s],
- the proposed method can find application in all areas of technology related to the use of discrete (digital) signals, while providing unique capabilities for the operation of information transmission channels deep under noise, with relatively high spectral efficiency, compared with known methods, with all the ensuing from this fact.
- useful, ceteris paribus, properties such as increasing the transmission range of information, the possibility of reusing the frequency resource for in relation to narrowband signals, stealth of information transmission and a number of other useful properties.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Abstract
L'invention concerne des procédés de réception et de transmission d'informations discrètes (numériques). Dans ce procédé et sur le côté émetteur, on utilise en qualité d'enveloppe de signal pulsé d'informations une fonction ayant un spectre limité et possédant sur un ou plusieurs intervalles dans l'impulsions des oscillations dont la fréquence dépasse la fréquence limite du spectre de l'impulsion modulée dans son ensemble (rejet de fréquence); les valeurs des paramètres de ces oscillations sont établies en fonction d'un indice informatif du signal devant être envoyé; sur le côté récepteur, le mélange reçu de signal et de bruit, après traitement dans la bande de fréquences du signal pulsé modulé jusqu'au démodulateur, est divisé en signaux pulsés élémentaires dont la longueur est égale à la longueur de l'intervalle avec rejet de fréquence qui sont soumis à un traitement de filtrage de fréquence ou spectral dans une plage de fréquences déterminée par l'intervalle avec rejet de fréquence en divisant cet intervalle (ces intervalles) après quoi, en analysant les paramètres d'oscillations avec rejet de fréquence, on apporte une solution concernant la valeur de l'indice informatif dans le signal modulé reçu.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2013123683 | 2013-05-23 | ||
| RU2013123683/08A RU2528085C1 (ru) | 2013-05-23 | 2013-05-23 | Способ внутриимпульсной модуляции-демодуляции с прямым расширением спектра |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014123451A1 true WO2014123451A1 (fr) | 2014-08-14 |
Family
ID=51299958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2013/001049 WO2014123451A1 (fr) | 2013-05-23 | 2013-11-19 | Procédé de modulation-démodulation intra-impulsions avec étalement de spectre direct |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2528085C1 (fr) |
| WO (1) | WO2014123451A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110263711A (zh) * | 2019-06-20 | 2019-09-20 | 中国工程物理研究院总体工程研究所 | 一种基于改进谱峭度的耦合信号冲击特征提取方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2652434C2 (ru) * | 2016-10-03 | 2018-04-26 | Виктор Петрович Шилов | Способ приемопередачи дискретных информационных сигналов |
| RU2668712C1 (ru) * | 2017-12-05 | 2018-10-02 | Виктор Петрович Шилов | Способ демодуляции дискретных сигналов в постшенноновском канале |
| RU2715289C1 (ru) * | 2019-06-28 | 2020-02-26 | Виктор Петрович Шилов | Способ обработки сигнально-шумовой смеси в постшенноновских каналах |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2007763C1 (ru) * | 1991-04-04 | 1994-02-15 | Завод "Калугаприбор" | Способ выделения основного тона из речевого сигнала |
| RU2264034C1 (ru) * | 2004-04-01 | 2005-11-10 | Государственное Унитарное Предприятие "Водоканал Санкт-Петербурга" | Региональная информационная система связи |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5671396A (en) * | 1995-05-08 | 1996-11-29 | Massachusetts Institute Of Technology | System for non-contact sensing and signalling using human bo dy as signal transmission medium |
| US6005887A (en) * | 1996-11-14 | 1999-12-21 | Ericcsson, Inc. | Despreading of direct sequence spread spectrum communications signals |
| RU106392U1 (ru) * | 2011-04-05 | 2011-07-10 | Алексей Владимирович Зюзин | Унифицированный возбудитель простых и сложных радиоимпульсов при комбинированном методе фазовой модуляции |
-
2013
- 2013-05-23 RU RU2013123683/08A patent/RU2528085C1/ru not_active IP Right Cessation
- 2013-11-19 WO PCT/RU2013/001049 patent/WO2014123451A1/fr active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2007763C1 (ru) * | 1991-04-04 | 1994-02-15 | Завод "Калугаприбор" | Способ выделения основного тона из речевого сигнала |
| RU2264034C1 (ru) * | 2004-04-01 | 2005-11-10 | Государственное Унитарное Предприятие "Водоканал Санкт-Петербурга" | Региональная информационная система связи |
Non-Patent Citations (1)
| Title |
|---|
| ALEKSEEV A.I. ET AL.: "Teoriya i primenenie psevdosluchainykh signalov''.", IZDATELSTVO «NAUKA», 1969, MOSCOW, pages 12, 22, 23 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110263711A (zh) * | 2019-06-20 | 2019-09-20 | 中国工程物理研究院总体工程研究所 | 一种基于改进谱峭度的耦合信号冲击特征提取方法 |
| CN110263711B (zh) * | 2019-06-20 | 2023-01-17 | 中国工程物理研究院总体工程研究所 | 一种基于改进谱峭度的耦合信号冲击特征提取方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2528085C1 (ru) | 2014-09-10 |
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