RU2013156059A - METHOD FOR DIGITAL FORMATION OF LATITUDE-MODULATED SIGNALS FOR HYDROACOUSTICS - Google Patents
METHOD FOR DIGITAL FORMATION OF LATITUDE-MODULATED SIGNALS FOR HYDROACOUSTICS Download PDFInfo
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- RU2013156059A RU2013156059A RU2013156059/08A RU2013156059A RU2013156059A RU 2013156059 A RU2013156059 A RU 2013156059A RU 2013156059/08 A RU2013156059/08 A RU 2013156059/08A RU 2013156059 A RU2013156059 A RU 2013156059A RU 2013156059 A RU2013156059 A RU 2013156059A
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- frequency
- pulse
- width modulated
- sawtooth
- modulated
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Abstract
1. Способ цифрового формирования широтно-модулированных импульсных сигналов, включающий формирование частотно-модулированного пилообразного цифрового сигнала, его сравнение с цифровым входным сигналом и формирование по результату сравнения последовательности широтно-модулированных импульсов, отличающийся тем, что частотно-модулированный пилообразный цифровой сигнал изменяют по частоте пропорционально частоте цифрового входного сигнала из условия целочисленного отношения частот.2. Способ по п. 1, отличающийся тем, что частотно-модулированный цифровой пилообразный сигнал формируют в виде симметричных прямого и инверсного пилообразных сигналов, по результату сравнения которых с цифровым входным сигналом формируют последовательность широтно-модулированных импульсов в виде первой и второй однотактных последовательностей широтно-модулированных импульсов, ключевое сложение которых обеспечивает формирование двухтактной последовательности разнополярных широтно-модулированных импульсов.1. A method for digitally generating a pulse-width modulated pulse wave signal, including generating a frequency-modulated sawtooth digital signal, comparing it with a digital input signal, and generating a sequence of pulse-width modulated pulses as a result of the comparison, characterized in that the frequency-modulated sawtooth waveform is changed in frequency in proportion to the frequency of the digital input signal from the condition of an integer frequency ratio. 2. The method according to claim 1, characterized in that the frequency-modulated digital sawtooth signal is formed in the form of symmetrical direct and inverse sawtooth signals, the result of the comparison of which with the digital input signal forms a sequence of pulse-width modulated pulses in the form of the first and second single-cycle sequences of pulse-width modulated pulses, the key addition of which ensures the formation of a push-pull sequence of bipolar pulse-width modulated pulses.
Claims (2)
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RU2013156059/08A RU2594918C2 (en) | 2013-12-17 | 2013-12-17 | Method for digital generation of width-modulated signals for hydroacoustics |
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RU2013156059/08A RU2594918C2 (en) | 2013-12-17 | 2013-12-17 | Method for digital generation of width-modulated signals for hydroacoustics |
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RU2013156059A true RU2013156059A (en) | 2015-06-27 |
RU2594918C2 RU2594918C2 (en) | 2016-08-20 |
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RU2013156059/08A RU2594918C2 (en) | 2013-12-17 | 2013-12-17 | Method for digital generation of width-modulated signals for hydroacoustics |
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Families Citing this family (1)
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RU2718003C1 (en) * | 2019-03-26 | 2020-03-27 | Акционерное Общество "Научно-исследовательский институт "Бриз" | Digital control method of key generator unit of ultrasonic range |
Family Cites Families (8)
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SU1075397A1 (en) * | 1982-03-24 | 1984-02-23 | Предприятие П/Я В-2654 | Two-step pulse-duration modulator |
SU1621159A1 (en) * | 1988-02-15 | 1991-01-15 | Предприятие П/Я В-2962 | Pulse-width modulator |
US5825257A (en) * | 1997-06-17 | 1998-10-20 | Telecommunications Research Laboratories | GMSK modulator formed of PLL to which continuous phase modulated signal is applied |
US6023199A (en) * | 1998-01-16 | 2000-02-08 | Motorola, Inc. | Pulse width modulation circuit and method |
US6693571B2 (en) * | 2000-05-10 | 2004-02-17 | Cirrus Logic, Inc. | Modulation of a digital input signal using a digital signal modulator and signal splitting |
RU2308800C9 (en) * | 2006-03-28 | 2007-12-20 | Открытое акционерное общество "Научно-производственный центр "Полюс" (ОАО "НПЦ "Полюс") | Digital pulse-width modulator having distributed spectral characteristic |
US20120022613A1 (en) * | 2009-03-16 | 2012-01-26 | Cochlear Limited | Transcutaneous Modulated Power Link for a Medical Implant |
KR20120032079A (en) * | 2010-09-28 | 2012-04-05 | 삼성전자주식회사 | Dimming circuit for light emitting diode driver and light emitting diode driver including the same |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20161218 |
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NF4A | Reinstatement of patent |
Effective date: 20191211 |