CN104901779A - Amplitude encoding communication method and device - Google Patents
Amplitude encoding communication method and device Download PDFInfo
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- CN104901779A CN104901779A CN201510322286.XA CN201510322286A CN104901779A CN 104901779 A CN104901779 A CN 104901779A CN 201510322286 A CN201510322286 A CN 201510322286A CN 104901779 A CN104901779 A CN 104901779A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/009—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location arrangements specific to transmitters
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Abstract
The invention relates to the communication field, in particular to an amplitude encoding communication method and an amplitude encoding communication device. The amplitude encoding communication method is characterized in that the method comprises the steps of a reference signal amplitude is set and at least one signal in a communication path is selected, wherein the signal amplitude has several levels, the signal amplitude at each level is an integral multiple of the reference signal amplitude, each level corresponds to one digit in a multi-level numeral system, and one digit in the multi-level numeral system is transmitted at one moment; a transmitting end encodes a data stream according to a compound mode of the signal amplitudes and transmits the encoded data array; and a receiving end obtains an amplitude signal of the transmitting end and decodes the amplitude signal according to the compound mode of the signal amplitudes. The beneficial effects of the amplitude encoding communication method and device provided by the invention are that digital signals can be transmitted in a manner that one of 1-n digits, such as decimal digits 1, 2, 3 to 9 and 0, is transmitted at one moment, and computer information, such as voices, images and data, can be transmitted as digital encoded information.
Description
Technical field
The present invention relates to the communications field, particularly a kind of amplitude coding communication means and device.
Background technology
Learnt by communication theory: signal is electromagnetism (or sound wave, or the light wave) coding of data, contains the data that will transmit in signal.Signal is generally independent variable with time, to represent that certain parameter (amplitude, frequency or phase place) of message (or data) is for dependent variable.Learnt by Nyquist's theorem and Shannon's theorems: any signal has corresponding bandwidth, and any channel all can produce decay to signal when signal transmission, therefore, the restriction of a data transmission rate is all there is in any channel when signal transmission, that is the amount of information that any one Δ t transmits is certain, if digital signal, the information that a certain moment transmits is 1 or 0.
The present invention proposes a kind of amplitude coding communication means and device, for digital signal, a certain moment can transmit the information of 1 ~ n numeral, the such as decimal system 1,2,3, the numeral of ~ 9,0, transmits the computerized informations such as voice, image, data by digital code information.
Summary of the invention
The object of this invention is to provide a kind of amplitude coding communication means and device, for digital signal, a certain moment can transmit the information of 1 ~ n numeral, realizes the coding transmission of the computerized informations such as voice, image, data.
Technical scheme of the present invention is:
A kind of amplitude coding communication means, is characterized in that, comprising:
One reference signal amplitude is set, choose the signal at least one communication path, described signal amplitude is some ranks, and the signal amplitude of each rank is the integral multiple of reference signal amplitude, certain word of the corresponding multi-system numeral of each rank, certain word of a certain moment transmission multi-system numeral;
The compound mode of data flow according to signal amplitude is encoded by transmitting terminal, and the data group after coding is transmitted;
Receiving terminal obtains the range signal of transmitting terminal, decodes according to the compound mode of signal amplitude.
Described a kind of amplitude coding communication means, is characterized in that, also comprise: reference signal and the data group signal transmitted send simultaneously.
Described a kind of amplitude coding communication means, it is characterized in that: the data group signal that receiving terminal receives reference signal simultaneously and transmits, reference signal I0r and data group signal Ixr is obtained by process (as process such as amplification, detections), Ixr is divided by I0r and round obtains the numeral that Ixr represents, i.e. ROUND ((Ixr/ I0r), 0).
Described method also comprises:
Error correction signal or effect signal is also comprised in multiple signals in communication path.
Error correction method is g (AF1, AF2, AF3, AF4, AF5, )=C (AF6, AF7, AF8 ...), g is error correction operation function, C is error correction signal amplitude combinations mode, AF1, AF2, AF3, AF4, AF5, AF6, AF7, AF8 is respectively F1, F2, F3, F4, the amplitude of F5, F6, F7, F8 signal.
Effect method be MOD (AF1, AF2, AF3, AF4, AF5 ... )=C (AF6, AF7, AF8 ...), MOD is effect code operation function, and C is effect signal amplitude compound mode.Check code algorithm has: code distance, odd-even check, Hamming check, cyclic redundancy check (CRC) (Cyclic Redundancy Check) etc.
Further, two-way parity check (Row and Column Parity), or bidirectional redundancy verification (Vertical and Longitudinal Redundancy Checks).
An emitter for amplitude coding communication means, is characterized in that: at least comprise amplitude coding unit and transmitter unit, and amplitude coding unit is used for the amplitude coding of data flow, and the data group after coding sends by transmitter unit.
The emitter of described a kind of amplitude coding communication means, is characterized in that: transmitter unit is electromagnetic radiation unit, has a wide frequency antenna to be connected with described electromagnetic radiation unit.
The emitter of described a kind of amplitude coding communication means, it is characterized in that: transmitter unit is electromagnetic radiation unit, be provided with the resonant antenna array corresponding with multiple Frequency points of choosing in communications band, described resonant antenna array is connected with described electromagnetic radiation unit.
The emitter of described a kind of amplitude coding communication means, is characterized in that: transmitter unit is acoustic wave emission unit, has a loud speaker to be connected with described acoustic wave emission unit.
The emitter of described a kind of amplitude coding communication means, is characterized in that: transmitter unit is ultrasonic transmitting element, has ultrasonic transducer to be connected with described ultrasonic transmitting element.
The emitter of described a kind of amplitude coding communication means, it is characterized in that: transmitter unit is ultrasonic transmitting element, be provided with the resonant ultrasonic wave transducer array corresponding with multiple Frequency points of choosing in communications band, described resonant ultrasonic wave transducer array is connected with described ultrasonic transmitting element.
The emitter of described a kind of amplitude coding communication means, is characterized in that: transmitter unit is laser emission element, and be provided with the laser array corresponding with multiple Frequency points of choosing in communications band, described laser array is connected with described laser emission element.
A receiving system for amplitude coding communication means, is characterized in that: at least comprise receiving element and amplitude decoding unit, and receiving element is for receiving range signal, and amplitude decoding unit is used for the decoding of range signal.
The receiving system of described a kind of amplitude coding communication means, is characterized in that: receiving element is electromagnetic wave receiving element, has a wide frequency antenna to be connected with described electromagnetic wave receiving element.
The receiving system of described a kind of amplitude coding communication means, it is characterized in that: receiving element is electromagnetic wave receiving element, be provided with the resonant antenna array corresponding with multiple Frequency points of choosing in communications band, described resonant antenna array is connected with described electromagnetic wave receiving element.
The receiving system of described a kind of amplitude coding communication means, is characterized in that: receiving element is acoustic receiver unit, has a MIC to be connected with described acoustic receiver unit.
The receiving system of described a kind of amplitude coding communication means, is characterized in that: receiving element is ultrasonic wave receive unit, has ultrasonic transducer to be connected with described ultrasonic wave receive unit.
The receiving system of described a kind of amplitude coding communication means, it is characterized in that: receiving element is ultrasonic wave receive unit, be provided with the resonant ultrasonic wave transducer array corresponding with multiple Frequency points of choosing in communications band, described resonant ultrasonic wave transducer array is connected with described ultrasonic wave receive unit.
The receiving system of described a kind of amplitude coding communication means, is characterized in that: receiving element is laser pick-off unit, is provided with photoelectric device group, described photoelectric device group is connected with described laser pick-off unit.
The invention has the beneficial effects as follows: the object of this invention is to provide a kind of amplitude coding communication means and device, for digital signal, the a certain moment can transmit the information of 1 ~ n numeral, the such as decimal system 1,2,3, the numeral of ~ 9,0, transmits the computerized informations such as voice, image, data by digital code information.
Accompanying drawing explanation
Fig. 1 is signal amplitude of the present invention coding schematic diagram.
Fig. 2 is the spectrogram of signal amplitude of the present invention modulation.
Fig. 3 is that the inventive method is applied to electromagnetic communication system.
Fig. 4 is that the inventive method is applied to multiple-resonant antenna electromagnetic communication system.
Fig. 5 is that the inventive method is applied to sound wave communication system.
Fig. 6 is the spectrogram that the inventive method is applied to sound wave communication system.
Fig. 7 is that the inventive method is applied to ultrasonic communication system.
Fig. 8 is that the inventive method is applied to multi-resonant transducer ultrasonic ripple communication system.
Fig. 9 is that the inventive method is applied to light communication system.
Figure 10 is the spectrogram that the inventive method is applied to light communication system.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is signal amplitude of the present invention coding schematic diagram, for the decimal system, chooses the signal in a communication path, Fig. 1 expression signal amplitude time diagram, arrange amplitude 1 for reference amplitude, amplitude 1 represents numeral 0, amplitude 2 represents numeral 1, and amplitude 3 represents numeral 2, and amplitude 4 represents numeral 3, amplitude 5 represents numeral 4, amplitude 6 represents numeral 5, and amplitude 7 represents numeral 6, and amplitude 8 represents numeral 7, amplitude 9 represents numeral 8, and amplitude 10 represents numeral 9.Suppose that receiving terminal obtains range signal Ix, arrange reference amplitude signal I0, then range signal Ix is divided by reference amplitude signal I0 and round obtains the numeral of range signal Ix representative, i.e. ROUND ((Ix/ I0), 0).Further, receiving terminal obtains range signal Ix and reference amplitude signal I0 simultaneously, then range signal Ix is divided by reference amplitude signal I0 and round obtains the numeral of range signal Ix representative, i.e. ROUND ((Ix/ I0), 0).
For the electronic installation of Same Physical position, as computer, data-signal is by bus transmission, the reference amplitude signal of setting computer is 0.7V, obtain the electronic component of reference amplitude signal 0.7V as voltage stabilizing didoe, like this, transmitting terminal sends data-signal with the multiple of 0.7V, and the data-signal in bus is exactly the numeral that data-signal is expressed divided by the multiple of 0.7V by receiving terminal.
For the electronic installation that strange land information transmits, as electromagnetic wave information transmits electronic installation, information of acoustic wave transmits electronic installation, light-wave information transmits electronic installation etc., because absolute reference amplitude signal can not be unified in two places, so the range signal of information coding and reference amplitude signal are sent by modulated carrier by transmit leg simultaneously, recipient is the range signal of obtaining information coding and the modulated carrier of reference amplitude signal simultaneously, by amplifying, demodulation (detection) obtains range signal Ixr and the reference amplitude signal I0r of information coding, Ixr is divided by I0r and round obtains the numeral that range signal Ixr represents, i.e. ROUND ((Ixr/ I0r), 0).
Fig. 2 is the spectrogram of signal amplitude of the present invention modulation, F1 is chosen in figure, F2, F3, F4, F5 is information coding frequency, F6, F7, F8 is effect or error correction coding frequency, choosing F0 is benchmark frequency, receiving party obtains the frequency signal of all participation information codings, i.e. F0, F1, F2, F3, F4, F5, F6, F7, the signal of F8 frequency, corresponding signal amplitude is I0, I1, I2, I3, I4, I5, I6, I7, I8, the acquisition rule of coded message is: the signal amplitude of information coding frequency is divided by the signal amplitude round of benchmark frequency, i.e. ROUND ((I1/ I0), 0), ROUND ((I2/ I0), 0), ROUND ((I3/ I0), 0), ROUND ((I4/ I0), 0), ROUND ((I5/ I0), 0), ROUND ((I6/ I0), 0), ROUND ((I7/I0), 0), ROUND ((I8/ I0), 0).Simple in order to describe, get 10 progression, i.e. decimal representations, as following table:
Further, the progression of the signal amplitude of information coding frequency can be arbitrary, that is can express the numerical value of arbitrary carry system.
Fig. 3 is that the inventive method is applied to electromagnetic communication system, system comprises transmitting portion and receiving unit, radiating portion comprises amplitude coding unit, transmitter unit, wideband transmitting antenna, and receiving unit comprises wideband reception antenna, receiving element, amplitude decoding unit.Amplitude coding unit is responsible for being the combination of each frequency signal amplitude by data stream encoding, further amplitude coding unit is also responsible for removing redundant information (prior art, according to Shannon theory: comprise redundant information in signal, utilize digital method to remove redundant information and can obtain packed data.), it is data flow that amplitude decoding unit is responsible for the amplitude coding information reverting of acquisition, transmitter unit is responsible for being that amplitude coding signal is sent by wideband transmitting antenna by amplitude coding convert information, and the amplitude coding signal that receiving element is responsible for wideband reception antenna obtains is converted into amplitude coding information.
Fig. 4 is that the inventive method is applied to multiple-resonant antenna electromagnetic communication system, embodiment shown in comparison diagram 3, transmitting and receiving antenna does not adopt wide frequency antenna, and adopt and each frequency resonant antenna one to one, all resonant antenna composition resonant antenna arrays, its advantage is that the signal of arbitrary frequency has best noise when sharp-pointed Q value in transmitting procedure, the mimo antenna pattern of MIMO-OFDM system can be adopted, i.e. multi-aerial radio communication system (Multiple-Input Multiple-Output) simultaneously.
Fig. 5 is that the inventive method is applied to sound wave communication system, and system comprises transmitting portion and receiving unit, and radiating portion comprises amplitude coding unit, transmitter unit, loud speaker, and receiving unit comprises microphone MIC, receiving element, amplitude decoding unit.Amplitude coding unit is responsible for being audio amplitude combination by data stream encoding, further amplitude coding unit is also responsible for removing redundant information (prior art, according to Shannon theory: comprise redundant information in signal, utilize digital method to remove redundant information and can obtain packed data.), it is data flow that amplitude decoding unit is responsible for the amplitude coding information reverting of acquisition, transmitter unit is responsible for being that audio amplitude code signal is sent by loud speaker by amplitude coding convert information, and the audio amplitude code signal that receiving element is responsible for microphone MIC obtains is converted into amplitude coding information.Fig. 6 is the spectrogram that the inventive method is applied to sound wave communication system, and Fs0 is reference amplitude frequency, and Fs 1, Fs 2, Fs 3, Fs 4, Fs 5 are information coding frequency, and Fs 6, Fs 7, Fs 8 are effect or error correction coding frequency.Typical application examples is the near-field communication between mobile phone, based on loud speaker and the microphone of mobile phone, transmits information by audio amplitude code signal.
Fig. 7 is that the inventive method is applied to ultrasonic communication system, system comprises transmitting portion and receiving unit, radiating portion comprises amplitude coding unit, transmitter unit, ultrasonic transducer 701, and receiving unit comprises ultrasonic transducer 702, receiving element, amplitude decoding unit.Amplitude coding unit is responsible for being amplitude of ultrasonic combination by data stream encoding, further amplitude coding unit is also responsible for removing redundant information (prior art, according to Shannon theory: comprise redundant information in signal, utilize digital method to remove redundant information and can obtain packed data.), it is data flow that amplitude decoding unit is responsible for the amplitude coding information reverting of acquisition, transmitter unit is responsible for being that amplitude of ultrasonic code signal is sent by ultrasonic transducer 701 by amplitude coding convert information, and the amplitude of ultrasonic code signal that receiving element is responsible for ultrasonic transducer 702 to obtain is converted into amplitude coding information.A typical application examples is underwater ultrasound wave communication, transmits information by amplitude of ultrasonic code signal.
Fig. 8 is that the inventive method is applied to multi-resonant transducer ultrasonic ripple communication system, embodiment shown in comparison diagram 7, a ultrasonic transducer do not adopted by transmitting and receiving ultrasonic transducer, and adopt and each frequency resonant ultrasonic wave transducer one to one, all resonant ultrasonic wave transducer composition resonant ultrasonic wave transducer arrays, its advantage is that the signal of arbitrary frequency has best noise when sharp-pointed Q value in transmitting procedure, can adopt the MIMO matrix of transducers pattern of MIMO-OFDM system simultaneously.Special case as, choose 3 transmitting ultrasonic transducers and 3 reception ultrasonic transducers, resonance frequency is respectively: Fs 0=20KHZ, Fs1=25KHZ, Fs2=30KHZ, choosing Fs0=20KHZ is reference amplitude frequency, Fs1=25KHZ amplitude progression is 1 ~ 10 times of Fs0 reference amplitude, Fs2=30KHZ amplitude progression is 1 ~ 10 times of Fs0 reference amplitude, transmit Fs0 so simultaneously, Fs1, Fs2 signal, recipient obtains a ten's digit by comparing Fs1 and Fs0 signal amplitude ratio, in like manner, a ten's digit is obtained by comparing Fs2 and Fs0 signal amplitude ratio, namely the same time can transmit 2 ten's digits.The device of special case is: radiating portion comprises 3 ultrasonic transducers of amplitude coding unit, transmitter unit and each Frequency point resonance, and receiving unit comprises 3 ultrasonic transducers, receiving element, amplitude decoding unit with each Frequency point resonance.
Fig. 9 is that the inventive method is applied to light communication system, system comprises transmitting portion and receiving unit, and radiating portion comprises amplitude coding unit, transmitter unit, laser array 901, optical collector 902, receiving unit comprises optical splitter 904, photoelectric device group 905, receiving element, amplitude decoding unit.903 is optical fiber, the light-ray condensing that the laser array of several laser constitution is launched by optical collector 902 to a light by Optical Fiber Transmission, optical collector and optical splitter can be prism or grating assembly, the laser of different frequency in a light is carried out space separation by optical splitter, it is light intensity combinations that amplitude coding unit is responsible for data stream encoding, further amplitude coding unit is also responsible for removing redundant information (prior art, according to Shannon theory: comprise redundant information in signal, utilize digital method to remove redundant information and can obtain packed data.), it is data flow that amplitude decoding unit is responsible for the amplitude coding information reverting of acquisition, transmitter unit is responsible for being that laser amplitude (light intensity) code signal is sent by laser array 901 by amplitude coding convert information, and laser amplitude (light intensity) code signal that receiving element is responsible for photoelectric device group 905 to obtain is converted into amplitude coding information.Such as, choose 3 lasers and 3 photoelectric devices, laser frequency is respectively: F
l0=473nm blue laser, F
lthe green laser of 1=556nm, F
lthe red laser of 2=635nm.Coded message is as following table:
Figure 10 is the spectrogram that the inventive method is applied to light communication system.F
l0 is reference amplitude frequency, F
l1, F
l2, F
l3, F
l4, F
l5 is information coding frequency, F
l6, F
l7, F
l8 is effect or error correction coding frequency.
Claims (10)
1. an amplitude coding communication means, is characterized in that, comprising:
One reference signal amplitude is set, choose the signal at least one communication path, described signal amplitude is some ranks, and the signal amplitude of each rank is the integral multiple of reference signal amplitude, certain word of the corresponding multi-system numeral of each rank, certain word of a certain moment transmission multi-system numeral;
The compound mode of data flow according to signal amplitude is encoded by transmitting terminal, and the data group after coding is transmitted;
Receiving terminal obtains the range signal of transmitting terminal, decodes according to the compound mode of signal amplitude.
2. a kind of amplitude coding communication means according to claim 1, is characterized in that, also comprise: reference signal and the data group signal transmitted send simultaneously.
3. a kind of amplitude coding communication means according to claim 2, it is characterized in that: the data group signal that receiving terminal receives reference signal simultaneously and transmits, reference signal I0r and data group signal Ixr is obtained by process, Ixr is divided by I0r and round obtains the numeral that Ixr represents, i.e. ROUND ((Ixr/ I0r), 0).
4. a kind of amplitude coding communication means according to claim 1 or 2 or 3, it is characterized in that, described method also comprises: also comprise error correction signal or effect signal in the multiple signals in communication path.
5. the emitter of a kind of amplitude coding communication means according to claim 1 or 2 or 3, it is characterized in that: at least comprise amplitude coding unit and transmitter unit, amplitude coding unit is used for the amplitude coding of data flow, and the data group after coding sends by transmitter unit.
6. the emitter of a kind of amplitude coding communication means according to claim 5, it is characterized in that: transmitter unit is electromagnetic radiation unit, be provided with the resonant antenna array corresponding with multiple Frequency points of choosing in communications band, described resonant antenna array is connected with described electromagnetic radiation unit.
7. the emitter of a kind of amplitude coding communication means according to claim 5, is characterized in that: transmitter unit is acoustic wave emission unit, has a loud speaker to be connected with described acoustic wave emission unit.
8. the receiving system of a kind of amplitude coding communication means according to claim 1 or 2 or 3, is characterized in that: at least comprise receiving element and amplitude decoding unit, and receiving element is for receiving range signal, and amplitude decoding unit is used for the decoding of range signal.
9. the receiving system of a kind of amplitude coding communication means according to claim 8, it is characterized in that: receiving element is electromagnetic wave receiving element, be provided with the resonant antenna array corresponding with multiple Frequency points of choosing in communications band, described resonant antenna array is connected with described electromagnetic wave receiving element.
10. the receiving system of a kind of amplitude coding communication means according to claim 8, is characterized in that: receiving element is acoustic receiver unit, has a MIC to be connected with described acoustic receiver unit.
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| US11832180B2 (en) | 2020-11-13 | 2023-11-28 | Beijing Xiaomi Mobile Software Co., Ltd. | Information transmission method and electronic device |
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Application publication date: 20150909 |