CN104796229A - Non-binary coding and transmitting method capable of achieving high-efficiency transmission of digital information - Google Patents
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Abstract
Disclosed is a non-binary coding and transmitting method capable of achieving high-efficiency transmission of digital information. According to the non-binary coding and transmitting method, quaternary coded digital information, octonary coded digital information and hexadecimal coded digital information are adopted, so that coding efficiency is improved, and the coding length of digital information codes can be shortened to one half, one third and one fourth of that of a binary code; four carrier pulses, eight carrier pulses and sixteen carrier pulses which are different in strength from one another as far as possible are adopted to represent four cardinal numbers including '0', '1', '2' and '3' in a quaternary code, cardinal numbers including '0', '1', '2', '3', '4', '5', '6' and '7' in an octonary code and cardinal numbers including '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E' and 'F' in a hexadecimal code respectively, and accordingly, transmission of a quaternary information code, an octonary information code and a hexadecimal information code is achieved; the coding and transmitting speeds of the quaternary information code, the octonary information code and the hexadecimal information code are twice, three times and four times of the speed of a binary information code respectively. The non-binary coding and transmitting method has great application value in the field of modern digital communication and can increase information transmission speed of a modern communication network by multiple times.
Description
Technical field
The present invention relates to three kinds of new coding digital informations and transmission method.Be characterized in using the quaternary, octal system and hexadecimal code, significantly can promote the code efficiency of information, shorten figure place or the length of coding, and then improve the efficiency of transmission of digital information.Belong to coding digital information and transmission field, have broad application prospects in modern communication field.
Background technology
Digital communication has the strong or Hi-Fi advantage of noise resisting ability, because replacing analog communication completely, becomes the mainstream technology of current field of information communication.Current digital communication uses binary coding, namely uses the combination string of " 0 " and " 1 " to represent a traditional analog signal.If digital signal is changed by 8 A/D converters, so, analog signal is quantified as 256 grades (0 ~ 255), as with binary coding representation, just need the combination string of " 0 " and " 1 " of 8 bit lengths could represent the signal strength signal intensity of any one reality, as 11111111 represent maximum 255, and 10000000 represent 128.And in current digital communication, use hard pulse to represent " 1 ", and represent " 0 " with weak pulse punching.So, a complete digitized signal (quantized value of corresponding analog signal) be transmitted, just need that transmission 8 is strong, the combination of weak pulse punching could realize.Obviously, this compares with the analog communication of same bandwidth, and the rate of information throughput of digital communication only has 1/8 of the transmission rate of analog communication.Obviously, the high fidelity of digital communication is to sacrifice transmission rate for cost.In order to promote the transmission rate of digital information, data compression technique, wavelength division multiplexing (WDM) technology and time division multiplexing (TDM) technology etc. are developed again.But what employ the current maturation of communication speed of the modern backbone communications network of all these technology also only has 40GB/s, still can not meet the real-time Transmission needs of the amount of information that the whole world increases fast.Cause the slow of network congestion or information transmission.Want the transmission speed significantly promoting digital information further, there is no breakthrough new technology at present.In existing binary coding framework, promote making slow progress of information transfer rate, R&D costs are high.The patent of the present invention binary-coded constraint of Gonna breakthrough just, invents new non-binary code and transmission method, improves the code efficiency of digital information, shortens code length, thus promoting transmission rate.Along with the raising of hyundai electronics manufacturing technology, the strength stability of communication carrier pulse (light pulse or electric pulse) can control in the fluctuation range of 2%, and the fluctuation range of 50% has still been reserved in binary coding communication, which results in the significant wastage of resource.How reducing this wasting of resources, and be converted into the transmission speed of lifting information, is significantly, and has great practical value.To realize this goal motivation of the present invention just.Three kinds of new non-binary code and transmission method have been invented for this reason.
Summary of the invention
Realize digital information transmission, A/D converter will be used first exactly to convert analog signal to digital signal.The figure place supposing A/D converter is N, then analog signal is digitized into 2
nindividual grade (0 ~ 2
n-1).Adopt current binary coding and transmission, such digital information needs to account for N bit length, and Direct Communication transmission just needs to transmit the transmission that just can complete a digital information for N time.So the code length of digital information just directly determines the communication transmission efficiency of digital information.If this just implies the code efficiency that can improve digital information, the code length shortening digital information or the figure place reduced shared by coding, just may improve the efficiency of transmission of digital information.Based on mathematics principles well-known, to same number encoder, the radix of the coding used is larger, and code efficiency is higher or shared figure place is fewer.The radix that binary coding uses is 2, and be minimum radix, so binary-coded efficiency is minimum, the figure place shared by coding is maximum.On the contrary, use non-binary code, the code efficiency of information must be improved, shorten code length, and then the transmission speed of the information of raising.Based on simple mathematic(al) manipulation,
2
N＝(2
q)
N/q(1)
Be clear that, the radix of coding expanded q power, namely becomes 2 from 2
q, the length of the coding obtained just shortens to N/q.Specifically, such as suppose q=2, namely use " 4 " scale coding, so code length is just than the contraction in length half of " 2 " scale coding.Correspondingly, if information transmission also uses " 4 " system, so, the efficiency of transmission of digital information just can double, and the transmission speed of current backbone network just can rise to 80GB/s from 40GB/s.This is a sizable progress, and the expense spent also is little, only needs the coded system of transceiver to become the quaternary from binary system.
Further increase code base, gets q=N, namely uses " 2
n" scale coding, then the code length N/q=1 of digital information, code efficiency is in this case the highest.If digital information transmission also uses " 2
n" scale coding, so, the efficiency of transmission of digital information is exactly N times of the transmission of " 2 " system.This situation is similar to analog communication, has low noise resisting ability, because quantification gradation is 2
-N, it is less than the undulate quantity of the amplitude of communication carrier pulse usually.Such as, N=8, then quantification gradation 2
-N=1/256=0.39%.And the fluctuation of current communication carrier pulse amplitude can only control usually 2%, the quantification gradation number that it covers is: 2%/0.39% ≈ 5.So, " 2
n" in scale coding and communication transfer, the digital information of transmission has the uncertainty of 5 quantification gradations, and namely the fidelity of transmission information reduces.Such as, the actual digital information sent is " 135 ", but may be " 135 ± 5 " in the digital information that receiving terminal receives.
In sum, the code efficiency of digital information and the fidelity of digital information transmission must consider.Promoting code efficiency must premised on the fidelity of transmission.The present invention based on code efficiency and transmission the considering of fidelity, specifically implements three kinds of non-binary code and transmission means just.
Embodiment
Example one, 4 scale coding and transmission
According to equation (1), get q=2, realize " 4 " scale coding, then code length shortens to N/2, namely " 4 " scale coding ratio " 2 " scale coding improves code efficiency one times, and code length shortens half, and the binary coding of such as decimal number 251 is 11111011, and the quaternary is encoded to 3323, code length shortens to 4 from eight.So, use the transmission of " 4 " scale coding, just can improve the transmission speed one times of information.
The numeral of each possibility correspondence in " 4 " scale coding is " 0 ", " 1 ", " 2 " and " 3 ".If with intensity modulated transmission information, then the transmission of " 4 " scale coding will use the carrier pulse of four kinds of intensity.In order to ensure the high fidelity transmitted, the intensity difference of four kinds of carrier pulses should be tried one's best greatly.If use I
0/ 4, I
0/ 2,3I
0/ 4 and I
0(I
0for most hard pulse amplitude) four kinds of carrier pulse intensity, then under 100% transmission fidelity, the carrier pulse strength fluctuation scope of allowing is ± I
0/ 8=± 12.5%I
0.In other words, as long as carrier pulse intensity I
0fluctuation range be less than 12.5%, four codings " 0 " of transmission, " 1 ", " 2 " and " 3 " just have fidelity 100%.And the fluctuation range that current electronic technology can control the intensity of carrier pulse is less than 2%.So " 4 " scale coding and the transmission of digital information can have the transmission fidelity of 100%, identical with the fidelity of current " 2 " scale coding and transmission, but transmission speed can double.The advantage of this example of the present invention just.If example of the present invention is implemented, the transmission speed of current key communication network can promote one times relatively easily, is promoted to 80GB/s from current 40GB/s.
Example two, 8 scale coding and transmission
According to equation (1), get q=3, realize " 8 " scale coding, then code length shortens to N/3, and namely " 8 " scale coding ratio " 2 " scale coding improves code efficiency twice, 1/3 of scale coding length that code length shortens to " 2 ".Such as, the binary coding of decimal number 503 is 111110111, and octal code is 767.Obvious code length shortens to 3 of 8 systems from binary 9; If use the transmission of " 8 " scale coding, the transmission speed twice of information just can be improved, or perhaps three of binary coding transmission speed times.
The numeral of each possibility correspondence in " 8 " scale coding is " 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 " and " 7 ".If with intensity modulated transmission information, then the transmission of " 8 " scale coding will use the carrier pulse of eight kinds of intensity.In order to ensure the high fidelity transmitted, the intensity difference of eight kinds of carrier pulses should be tried one's best greatly.Suppose that the eight kinds of carrier pulse intensity used are respectively I
0/ 8, I
0/ 4,3I
0/ 8, I
0/ 2,5I
0/ 8,3I
0/ 4,7I
0/ 8 and I
0(I
0for most hard pulse amplitude), then under 100% transmission fidelity, the carrier pulse strength fluctuation scope of allowing is ± I
0/ 16=± 6.25%I
0.In other words, as long as carrier pulse intensity I
0fluctuation range be less than 6.25%, eight codings " 0 " of transmission, " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 " and " 7 " just have fidelity 100%.And the fluctuation range that current electronic technology can control the intensity of carrier pulse is less than 2%.So " 8 " scale coding and the transmission of digital information can have the transmission fidelity of 100%, identical with the fidelity of current " 2 " scale coding and transmission, but efficiency of transmission can improve twice.The advantage of this example of the present invention just.If example of the present invention is implemented, the transmission speed of current key communication network can promote twice relatively easily, is promoted to 120GB/s from current 40GB/s.
Example three, 16 scale coding and transmission
According to equation (1), get q=4, realize " 16 " scale coding, then code length shortens to N/4, and namely " 16 " scale coding ratio " 2 " scale coding improves code efficiency three times, 1/4 of scale coding length that code length shortens to " 2 ".The binary coding of such as decimal number 223 is 11011111, and " 16 " scale coding is DF.Obviously, code length shortens to hexadecimal two from binary eight.So, use the transmission of " 16 " scale coding, just can improve the transmission speed three times of information, or perhaps four of binary coding transmission speed times.
The numeral of each possibility correspondence in " 16 " scale coding is " 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 ", " A ", " B ", " C ", " D ", " E " and " F ".If with intensity modulated transmission information, then the transmission of " 16 " scale coding will use the carrier pulse of 16 kinds of intensity.In order to ensure the high fidelity transmitted, the intensity difference of 16 kinds of carrier pulses should be tried one's best greatly.Suppose that the 16 kinds of carrier pulse intensity used are respectively I
0/ 16, I
0/ 8,3I
0/ 16, I
0/ 4,5I
0/ 16,3I
0/ 8,7I
0/ 16, I
0/ 2,9I
0/ 16,5I
0/ 8,11I
0/ 16,3I
0/ 4,13I
0/ 16,7I
0/ 8,15I
0/ 16 and I
0(I
0for most hard pulse amplitude), then under 100% transmission fidelity, the carrier pulse strength fluctuation scope of allowing is ± I
0/ 32=± 3.125%I
0.In other words, as long as carrier pulse intensity I
0fluctuation range be less than 3.13%, 16 codings " 0 " of transmission, " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 ", " A ", " B ", " C ", " D ", " E " and " F " just has fidelity 100%.And the fluctuation range that current electronic technology can control the intensity of carrier pulse is less than 2%.So " 16 " scale coding and the transmission of digital information can have the transmission fidelity of 100%, identical with the fidelity of current " 2 " scale coding and transmission, but efficiency of transmission can improve 3 times.The advantage of this example of the present invention just.If example of the present invention is implemented, the transmission speed of current key communication network can promote three times relatively easily, is promoted to 160GB/s from current 40GB/s.
Claims (3)
1. realize quaternary coding and the transmission method of digital information high-efficiency transfer, use " 4 " scale coding digital information, and to try one's best large carrier pulse by four intensity differences, such as I
0/ 4, I
0/ 2,3I
0/ 4 and I
0or 0, I
0/ 3,2I
0/ 3 and I
0, represent four radixes " 0 " of " 4 " scale coding, " 1 ", " 2 " and " 3 "; It is characterized in that " 4 " scale coding has higher code efficiency, the half of scale coding length that code length only has " 2 ", thus " 4 " binary digits information coding can improve digital information transmission speed one times with transmission method ratio " 2 " binary digits information coding and transmission method.
2. realize octal code and the transmission method of digital information high-efficiency transfer, use " 8 " scale coding digital information, and to try one's best large carrier pulse by eight intensity differences, such as I
0/ 8, I
0/ 4,3I
0/ 8, I
0/ 2,5I
0/ 8,3I
0/ 4,7I
0/ 8 and I
0or 0, I
0/ 7,2I
0/ 7,3I
0/ 7,4I
0/ 7,5I
0/ 7,6I
0/ 7 and I
0, represent eight radixes " 0 " of " 8 " scale coding, " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 " and " 7 "; It is characterized in that " 8 " scale coding has higher code efficiency, 1/3rd of scale coding length that code length only has " 2 ", thus " 8 " binary digits information coding can improve digital information transmission speed twice with transmission method ratio " 2 " binary digits information coding and transmission method.
3. realize hexadecimal code and the transmission method of digital information high-efficiency transfer, use " 16 " scale coding digital information, and to try one's best large carrier pulse by 16 intensity differences, such as I
0/ 16, I
0/ 8,3I
0/ 16, I
0/ 4,5I
0/ 16,3I
0/ 8,7I
0/ 16, I
0/ 2,9I
0/ 16,5I
0/ 8,11I
0/ 16,3I
0/ 4,13I
0/ 16,7I
0/ 8,15I
0/ 16 and I
0or 0, I
0/ 15,2I
0/ 15, I
0/ 5,4I
0/ 15, I
0/ 3,2I
0/ 5,7I
0/ 15,8I
0/ 15,3I
0/ 5,2I
0/ 3,11I
0/ 15,4I
0/ 5,13I
0/ 15,14I
0/ 15 and I
0, represent eight radixes " 0 " of " 16 " scale coding, " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 ", " A ", " B ", " C ", " D ", " E " and " F "; It is characterized in that " 16 " scale coding has higher code efficiency, 1/4th of scale coding length that code length only has " 2 ", thus the digital information transmission speed of " 16 " binary digits information coding and transmission method is four times of " 2 " binary digits information coding and transmission method.
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Cited By (3)
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| CN109347566A (en) * | 2018-11-15 | 2019-02-15 | 上海理工大学 | A kind of communication means being imaged based on quaternary coding mode and association in time |
| CN110062187A (en) * | 2019-04-25 | 2019-07-26 | 杭州雄迈集成电路技术有限公司 | A kind of system and method for efficient coaxial control information transmission |
| CN110071769A (en) * | 2019-03-29 | 2019-07-30 | 上海理工大学 | A kind of optical communication method and its optical communication system based on association in time imaging |
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| CN103179067A (en) * | 2013-03-07 | 2013-06-26 | 西安理工大学 | Multi-system digital communication carrier modulation method |
| CN104295969A (en) * | 2014-10-28 | 2015-01-21 | 江苏新广联光电股份有限公司 | LED lamp for high-speed visible light communication |
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2015
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| US6347125B1 (en) * | 1999-01-11 | 2002-02-12 | Ericsson Inc. | Reduced complexity demodulator for multi-bit symbols |
| CN1599258A (en) * | 2004-06-25 | 2005-03-23 | 浙江大学 | Coding mode suitable for different refrared control signal |
| CN103179067A (en) * | 2013-03-07 | 2013-06-26 | 西安理工大学 | Multi-system digital communication carrier modulation method |
| CN104295969A (en) * | 2014-10-28 | 2015-01-21 | 江苏新广联光电股份有限公司 | LED lamp for high-speed visible light communication |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347566A (en) * | 2018-11-15 | 2019-02-15 | 上海理工大学 | A kind of communication means being imaged based on quaternary coding mode and association in time |
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| CN110071769A (en) * | 2019-03-29 | 2019-07-30 | 上海理工大学 | A kind of optical communication method and its optical communication system based on association in time imaging |
| CN110062187A (en) * | 2019-04-25 | 2019-07-26 | 杭州雄迈集成电路技术有限公司 | A kind of system and method for efficient coaxial control information transmission |
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Application publication date: 20150722 |