CN106911397A - It is a kind of reentered suitable for aircraft during blackout range X-ray communication method - Google Patents
It is a kind of reentered suitable for aircraft during blackout range X-ray communication method Download PDFInfo
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- CN106911397A CN106911397A CN201710049140.1A CN201710049140A CN106911397A CN 106911397 A CN106911397 A CN 106911397A CN 201710049140 A CN201710049140 A CN 201710049140A CN 106911397 A CN106911397 A CN 106911397A
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Abstract
The present invention discloses a kind of method of the communication of blackout range X-ray during being reentered suitable for aircraft, mainly includes：By the aircraft cabin internal X-ray generator modulation generation communication data to be transmitted, different height position when air forms plasma sheath is reentered according to aircraft, the different X-ray energies of selection carry out reliable data transmission procedure.The present invention makes full use of the advantage that X-ray communicates, and the real-time height during being reentered according to aircraft carries out the communication process of reliable uplink data using controllable different-energy X-ray, so as to effectively solve the problems, such as that blackout range communicates.
Description
Technical field：
The present invention relates to communication technical field, and in particular to one kind reentered suitable for aircraft during blackout range X-ray
The method of communication, it realizes that aircraft reenters the blackout range communication that air is formed using X-ray, after aircraft atmospheric reentry
The selection and the modulation to signal of wanted carrier X-ray energy in the case where different height carries out uplink communication pattern.
Background technology：
Spacecraft with the 5-20 times of speed of velocity of sound in the interval flight course of ground 25-90km, by air and its
Violent interaction between surface, surface forms very violent shock wave, and the part kinetic energy of aircraft is inhaled by the air of surrounding
Receipts cause gas molecule to dissociate, and produce the high-temperature gas layer containing substantial amounts of electronics and cation, i.e., so-called " plasma sheath
Set ", and these charged particles (predominantly free electron) will absorb, reflect and scatter electromagnetic wave, produce metalloid shielding
Effect so that signal of communication is decayed, at the same make antenna impedance operator change, pattern distortion.These effects
Communication quality will be caused to deteriorate, when plasma oscillation frequency is higher than communication signal frequency, information link will be caused to interrupt,
Form so-called " black barrier " phenomenon.
Keith doctors Gendreau of US National Aeronautics and Space Administration (NASA) Ge Dade space research centers in 2007
Propose first space X ray communication concept, X-ray as a kind of wavelength short (0.01~10nm), frequency it is high (3 ×
1016Hz~3 × 1019Hz) electromagnetic wave, equally can as the carrier of carrying information be used for communicate.X-ray is in vacuum environment
Physical Attenuation is transmitted without, frequency is several orders of magnitude higher than microwave, and communication bandwidth is higher in theory, California, USA university
Porter professors George think X-ray communication theoretical maximum speed can reach 40000Tbit/s.Traditional radio frequency side
Formula unfailing performance in the case where interference and space weather change is shielded is substantially reduced or even cannot communicated, and X-ray is logical
Letter can in the case where environment is electromagnetically shielded normal work, can be used for the blackout range of high-Mach aircraft communication and aircraft when reentering and lead to
Letter.
Because aircraft is in Atmospheric processes are reentered, however it remains influence of the rarefied atmosphere to X-ray, the present invention proposes profit
Carry out uplink data communication transmission method with time-varying X-ray energy, so as to realize X-ray blackout range communicated it is credible
Property.
The content of the invention：
The present invention provides a kind of method of blackout range X-ray communication during being reentered suitable for aircraft, and it is directed to existing
The black barrier problem of communication occurred in technology, during carrying out uplink communication using X-ray, reenters process different in aircraft
Height using different X-ray energies system of selection, so as to carry out reliable signal transmission.
The present invention is adopted the following technical scheme that：It is a kind of reentered suitable for aircraft during blackout range X-ray communication side
Method, comprises the following steps：
Step 1, it is data signal as modulated signal that analog-to-digital conversion is carried out to the voice to be transmitted, video information, etc.
Treat the modulation of carrier signal；
Step 2, for the modulated signal that step 1 is obtained, to be transmitted by the internal X-ray generator modulation generation of aircraft cabin
Uplink communication data；
Step 3, diverse location that air forms plasma sheath is reentered highly according to aircraft, is obtained for step 2
Modulated signal, the different X-ray energy of real-time selection carries out up-link transmission.
Further, step 1 specifically includes following steps：
Step 1.1, as the signal modulating method that X-ray communication is conventional, there is binary system amplitude shift keying and multiple-pulse arteries and veins
Rush position modulation；
Step 1.2, selects binary phase shift keying modulator approach, and the method is that binary symbol is transmitted using two kinds of phases
Number, conventional phase is 0 and π, in nth slot (n-1) Tb≤ t ＜ nTbOn, its signal can be expressed as
Baseband signal m (t), is s after carrier signal modulationBPSK(t)=Am (t) cos2 π fcT, wherein A are carrier signal
Amplitude, TbIt is carrier cycle, fcIt is the centre frequency of carrier signal；
Step 1.3, correspondingly, such method received by accurate carrier frequency or phase information is phase
Stem grafting is received or coherent demodulation.
Further, step 2 specifically includes following steps：
Step 2.1, for the modulated signal that step 1 is obtained, to be passed by the internal X-ray generator modulation generation of aircraft cabin
Defeated uplink communication data；
Step 2.2, for the signal of aircraft cabin internal X-ray generator transmitting, effective focusing is carried out to X-ray with standard
Straight effective transmission to improve signal.
Further, step 3 specifically includes following steps：
Step 3.1, the diverse location that air is reentered according to aircraft highly, for the modulated signal that the step 2 is obtained,
The different X-ray energy of selection carries out up-link transmission；
Step 3.2, when having just enter into blackout range height 90km positions, is carried out using the X-ray of >=10keV in rarefied atmosphere
Uplink communication；During into blackout range height 80km positions, carried out in rarefied atmosphere using the X-ray of >=15keV up
Link communication；During into blackout range height 70km positions, up-link is carried out in rarefied atmosphere using the X-ray of >=18keV
Communication；
Step 3.3, during into blackout range height 61km positions, using the X-ray of >=20keV on rarefied atmosphere is carried out
Communications uplink；During into blackout range height 50km positions, uplink is carried out in rarefied atmosphere using the X-ray of >=50keV
Road communicates；During into blackout range height 40km positions, carry out up-link in rarefied atmosphere using the X-ray of >=150keV and lead to
Letter；
Step 3.4, when blackout range height 30km positions are left soon, using the X-ray of >=200keV in rarefied atmosphere
Carry out uplink communication；
Step 3.5, as benchmark, aircraft is reentered in Atmospheric processes, and suitable X-ray is selected according to corresponding height
Energy carries out reliably uplink data transmission.
The present invention has the advantages that：The present invention makes full use of X-ray to solve and reenters Atmospheric processes in aircraft
Middle formation blackout range communication issue, it is contemplated that thin atmospheric environment is still present during reentering, it is proposed that in different flights
Height carries out reliable uplink data communication problem using variable X-ray energy.
Brief description of the drawings：
Fig. 1 is to carry out uplink communication schematic diagram in blackout range using X-ray.
Fig. 2 is carried out up using the X-ray of >=10keV to occur during blackout range height 90km positions in rarefied atmosphere
Link communication.
Fig. 3 is carried out up using the X-ray of >=20keV to occur during blackout range height 61km positions in rarefied atmosphere
Link communication.
Fig. 4 is carried out up using the X-ray of >=200keV to occur during blackout range height 30km positions in rarefied atmosphere
Link communication.
Fig. 5 is the bit error performance in plasma channel using X-ray communication.
Specific embodiment：
Below with reference to accompanying drawing and specific embodiment, the invention will be further described.
As shown in figure 1, the black barrier problem of communication that aircraft is formed during reentering, it is possible to use X-ray is carried out effectively
Up-link is transmitted, and is comprised the following steps：
Step 1, the information such as voice, the video to be transmitted are carried out analog-to-digital conversion for data signal as modulated signal,
Wait the modulation (being modulated using BPSK modes) of carrier signal；
Step 2, for the modulated signal that the step 1 is obtained, is wanted by the internal X-ray generator modulation generation of aircraft cabin
The uplink communication data of transmission；
Step 3, reenters diverse location that air forms plasma sheath highly, for the step 2 according to aircraft
The modulated signal for obtaining, up-link transmission is carried out with reference to the different X-ray energy of Fig. 2, Fig. 3 and Fig. 4 real-time selection.For
The signal of reentry vehicle cabin internal X-ray generator transmitting is, it is necessary to carry out effective focusing to X-ray with collimation to improve signal
Effective transmission.The present invention needs to carry out uplink communication using different X-ray energies, it is considered to during aircraft is reentered
The plasma sheath of formation, however it remains faint atmosphere influence, in order to carry out effective X-ray communication data transfer,
Needs reenter diverse location height (25-90km) of air according to aircraft, for the modulated signal that the step 2 is obtained, choosing
Selecting different X-ray energies carries out up-link transmission.
It should be noted that the step 1 specifically includes following steps：
Step 1.1, as the signal modulating method that X-ray communication (XCOM) is conventional, there is binary system amplitude shift keying (2ASK)
And multiple-pulse pulse position modulation (MPPM) etc.；
Step 1.2, several signal modulation/demodulation methods compared to more than, selects binary phase shift keying (BPSK) modulation methods
Method, its error ratio characteristic has obvious advantage, and the method is that binary symbols are transmitted using two kinds of phases, and conventional phase is
0 and π, in nth slot (n-1) Tb≤ t ＜ nTbOn, its signal can be expressed as
Baseband signal m (t), is s after carrier signal modulationBPSK(t)=Am (t) cos2 π fc(wherein A is carrier signal to t
Amplitude, TbIt is carrier cycle, fcIt is the centre frequency of carrier signal)；
Step 1.3, correspondingly, such method received by accurate carrier frequency or phase information is phase
Stem grafting is received or coherent demodulation.
It should be noted that the step 2 specifically includes following steps：
Step 2.1, for the modulated signal that the step 1 is obtained, by aircraft cabin internal X-ray generator modulation generation institute
The uplink communication data to be transmitted；
Step 2.2, for the transmitting of aircraft cabin internal X-ray generator signal, it is necessary to carry out effective focusing to X-ray
Effective transmission of signal is improved with collimation.
It should be noted that the step 3 specifically includes following steps：
Step 3.1, because X-ray wavelength is very short, when x-ray photon energy is more than 10keV, if that is, wavelength is less than
During 0.12nm, atmospheric pressure is less than 10-4Pa, X-ray is almost without fading transmission；
Step 3.2, it is considered to the plasma sheath that aircraft is formed during reentering, however it remains faint atmosphere shadow
Ring, in order to carry out effective X-ray communication data transfer, it is necessary to reenter the diverse location height (25- of air according to aircraft
90km), the modulated signal for being obtained for the step 2, selects different X-ray energies to carry out up-link transmission；
Step 3.3, when having just enter into blackout range height 90km positions, is transmitted using the X-ray of >=10keV in rarefied atmosphere
To international space station (ISS), more than 95%, energy lift to 20keV or 50keV are almost completely penetrated through its transmission coefficient.Therefore
Selecting the X-ray of 10keV can carry out effective transmission of signal, into during blackout range height 80km positions, it is necessary to using >=15keV
X-ray carry out uplink communication in rarefied atmosphere；Into during blackout range height 70km positions, it is necessary to using >=18keV
X-ray carry out uplink communication in rarefied atmosphere；
Step 3.4, during into blackout range height 61km positions, using >=20keV X-ray rarefied atmosphere transmit to
International space station (ISS) its transmission coefficient is transmitted to state using the X-ray of 20keV and 50keV more than 75% in rarefied atmosphere
Border space station (ISS) its transmission coefficient is more than 75% and 95%, therefore the X-ray of selection >=20keV can carry out the effective of signal
Transmission；Into during blackout range height 50km positions, it is necessary to carry out up-link in rarefied atmosphere using the X-ray of >=50keV
Communication；Into during blackout range height 40km positions, it is necessary to carry out up-link in rarefied atmosphere using the X-ray of >=150keV
Communication；
Step 3.5, when blackout range height 30km positions are left soon, using 20keV, 50keV, 200keV and 500keV
X-ray transmits to international space station (ISS) its transmission coefficient and is respectively 0,40%, 60% and 80% in rarefied atmosphere.Therefore
The X-ray of selection >=200keV can carry out effective transmission of signal, it is necessary to coordinate powerful x-ray source to meet；
Step 3.6, as benchmark, aircraft is reentered in Atmospheric processes, and suitable X-ray is selected according to corresponding height
Energy carries out reliably uplink data transmission.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, these improvement also should be regarded as of the invention
Protection domain.
Claims (4)
1. it is a kind of reentered suitable for aircraft during blackout range X-ray communication method, it is characterised in that：Including following step
Suddenly：
Step 1, it is data signal as modulated signal that analog-to-digital conversion is carried out to the voice to be transmitted, video information, waits and carrying
The modulation of ripple signal；
Step 2, for the modulated signal that step 1 is obtained, by the internal X-ray generator modulation generation of aircraft cabin to be transmitted it is upper
Communications uplink data；
Step 3, diverse location that air forms plasma sheath is reentered highly according to aircraft, is obtained for step 2
Signal is adjusted, the different X-ray energy of real-time selection carries out up-link transmission.
2. the method for blackout range X-ray communication during being reentered suitable for aircraft as claimed in claim 1, its feature exists
In：Step 1 specifically includes following steps：
Step 1.1, as the signal modulating method that X-ray communication is conventional, there is binary system amplitude shift keying and multiple-pulse pulse position
Put modulation；
Step 1.2, selects binary phase shift keying modulator approach, and the method is to transmit binary symbols using two kinds of phases, often
Phase is 0 and π, in nth slot (n-1) Tb≤ t ＜ nTbOn, its signal can be expressed as
Baseband signal m (t), is s after carrier signal modulationBPSK(t)=Am (t) cos2 π fcT, wherein A are carrier signal amplitude,
TbIt is carrier cycle, fcIt is the centre frequency of carrier signal；
Step 1.3, correspondingly, such method received by accurate carrier frequency or phase information is phase stem grafting
Receive or coherent demodulation.
3. the method for blackout range X-ray communication during being reentered suitable for aircraft as claimed in claim 2, its feature exists
In：Step 2 specifically includes following steps：
Step 2.1, for the modulated signal that step 1 is obtained, to be transmitted by the internal X-ray generator modulation generation of aircraft cabin
Uplink communication data；
Step 2.2, for the signal of aircraft cabin internal X-ray generator transmitting, effective focusing is carried out to X-ray and is come with collimation
Improve effective transmission of signal.
4. the method for blackout range X-ray communication during being reentered suitable for aircraft as claimed in claim 3, its feature exists
In：Step 3 specifically includes following steps：
Step 3.1, the diverse location that air is reentered according to aircraft highly, for the modulated signal that the step 2 is obtained, selection
Different X-ray energies carries out up-link transmission；
Step 3.2, when having just enter into blackout range height 90km positions, is carried out up using the X-ray of >=10keV in rarefied atmosphere
Link communication；During into blackout range height 80km positions, up-link is carried out in rarefied atmosphere using the X-ray of >=15keV
Communication；During into blackout range height 70km positions, uplink communication is carried out in rarefied atmosphere using the X-ray of >=18keV；
Step 3.3, during into blackout range height 61km positions, uplink is carried out using the X-ray of >=20keV in rarefied atmosphere
Road communicates；During into blackout range height 50km positions, carry out up-link in rarefied atmosphere using the X-ray of >=50keV and lead to
Letter；During into blackout range height 40km positions, uplink communication is carried out in rarefied atmosphere using the X-ray of >=150keV；
Step 3.4, when blackout range height 30km positions are left soon, is carried out using the X-ray of >=200keV in rarefied atmosphere
Uplink communication；
Step 3.5, as benchmark, aircraft is reentered in Atmospheric processes, and suitable X-ray energy is selected according to corresponding height
Carry out reliably uplink data transmission.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631866A (en) * | 2018-04-19 | 2018-10-09 | 云南电网有限责任公司电力科学研究院 | A kind of means of communication and system |
| CN110868281A (en) * | 2019-11-07 | 2020-03-06 | 西北工业大学 | Anti-blackout communication method based on carrier aggregation and frequency diversity |
| CN111106875A (en) * | 2019-12-17 | 2020-05-05 | 中国科学院国家空间科学中心 | Black barrier area X-ray communication system and method thereof |
| CN112260767A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Infrared-gamma ray combined wireless communication system and communication method |
| CN112260763A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Ray position modulation communication system and communication method |
| CN112260753A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Gamma-ray energy modulation communication system and method |
| CN112333909A (en) * | 2020-11-30 | 2021-02-05 | 西安电子科技大学 | Plasma sheath ground simulation electromagnetic experiment device and using method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680929A (en) * | 2016-01-23 | 2016-06-15 | 安凯 | Blackout broken reentry aircraft communication system and method |
-
2017
- 2017-01-23 CN CN201710049140.1A patent/CN106911397B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680929A (en) * | 2016-01-23 | 2016-06-15 | 安凯 | Blackout broken reentry aircraft communication system and method |
Non-Patent Citations (3)
| Title |
|---|
| 王家胜 等: "钝头型航天器再入通信黑障及对策研究", 《航天器工程》 * |
| 胡红军 等: "飞行器黑障区测控技术问题探讨", 《弹箭与制导学报》 * |
| 雷厉 等: "未来飞行器测控通信体系结构及关键技术", 《电讯技术》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631866A (en) * | 2018-04-19 | 2018-10-09 | 云南电网有限责任公司电力科学研究院 | A kind of means of communication and system |
| CN110868281A (en) * | 2019-11-07 | 2020-03-06 | 西北工业大学 | Anti-blackout communication method based on carrier aggregation and frequency diversity |
| CN111106875A (en) * | 2019-12-17 | 2020-05-05 | 中国科学院国家空间科学中心 | Black barrier area X-ray communication system and method thereof |
| CN111106875B (en) * | 2019-12-17 | 2021-08-31 | 中国科学院国家空间科学中心 | Black barrier area X-ray communication system and method thereof |
| CN112260767A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Infrared-gamma ray combined wireless communication system and communication method |
| CN112260763A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Ray position modulation communication system and communication method |
| CN112260753A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Gamma-ray energy modulation communication system and method |
| CN112260753B (en) * | 2020-10-19 | 2022-02-01 | 中国核动力研究设计院 | Gamma-ray energy modulation communication system and method |
| CN112333909A (en) * | 2020-11-30 | 2021-02-05 | 西安电子科技大学 | Plasma sheath ground simulation electromagnetic experiment device and using method |
| CN112333909B (en) * | 2020-11-30 | 2021-09-03 | 西安电子科技大学 | Plasma sheath ground simulation electromagnetic experiment device and using method |
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