[특허]Method and system for enhancing data rates

Method and system for enhancing data rates 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/08 G01S-013/00 H04B-001/00 H04B-014/04 H04L-027/26
출원번호	US-0844695 (2013-07-15)
등록번호	US-8928524 (2015-01-06)
발명자 / 주소	Nunn, Carroll J. Levitas, Menachem
출원인 / 주소	Technology Service Corporation
대리인 / 주소	Finnegan, Henderson, Farabow, Garrett & Dunner LLP
인용정보	피인용 횟수 : 0 인용 특허 : 70

초록 ▼

The present disclosure relates to the field of pulse compression in signal processing, and more particularly, to systems and methods for the synthesis of waveforms for suppressing sidelobes and sidebands using a combination of time and spectral control. More specifically, the present disclosure relates to a set of waveform symbols which can be used to maximize use of disaggregated grey-space spectrum, adapt to changing spectral condition, and maintain or enhance data rates relative to standard binary phase-shift keying (BPSK) under normal conditions.

대표청구항 ▼

1. A method for enhancing the use of disaggregated spectrum in a system transmitting electromagnetic pulses, comprising: generating one or more waveform symbol sets,said waveform symbol set comprising one or more waveforms,said waveform of one or more waveforms forming a unique code comprising 2 to 16 symbols,said waveform symbol set being a unique set of codes relative to the codes of the other of the one or more waveform symbol sets,said waveform symbol set corresponding to a contiguous spectral fragment within the disaggregated spectrum; andmodulating a transmitted pulse in the spectral fragment with a waveform from the waveform symbol set corresponding to the spectral fragment. 2. The method of claim 1, further comprising a first waveform of a first waveform symbol set and a second waveform of the waveform symbol set, said second waveform being orthogonal to the first waveform. 3. The method of claim 2, wherein the waveform symbol set is generated by calculating time-domain derivatives of an objective function, in the frequency domain, to control time domain characteristics of the waveforms in the waveform symbol set that are quantified by the objective function. 4. The method of claim 2, wherein the waveform symbol set is generated by calculating time-domain derivatives of an objective function, in the frequency domain, to control frequency domain characteristics of the waveforms in the waveform symbol set that are quantified by the objective function. 5. The method of claim 3, wherein the time-domain derivatives minimize the objective function. 6. The method of claim 1, further comprising increasing the time duration of the waveform symbol, and increasing the available signal-to-noise ratio. 7. The method of claim 1, further comprising, suppressing sideband interference by applying M-ary phase coding to each waveform in the waveform symbol set. 8. The method of claim 1, further comprising, increasing the data rate by simultaneously assigning each spectral fragment in the disaggregated spectrum to a different amplifier. 9. The method of claim 1, further comprising, increasing the data rate in a linear manner, while increasing total transmitted power in a linear manner. 10. The method of claim 4, wherein the time-domain derivatives minimize the objective function.

이 특허에 인용된 특허 (70)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method and system for enhancing data rates 원문보기

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Method and system for enhancing data rates 원문보기

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