CN106817200A - Dynamic signal detection method based on multichannel communication reception system - Google Patents
Dynamic signal detection method based on multichannel communication reception system Download PDFInfo
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- CN106817200A CN106817200A CN201710070641.8A CN201710070641A CN106817200A CN 106817200 A CN106817200 A CN 106817200A CN 201710070641 A CN201710070641 A CN 201710070641A CN 106817200 A CN106817200 A CN 106817200A
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
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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
- H04L1/0091—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location arrangements specific to receivers, e.g. format detection
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of dynamic signal detection method based on multichannel communication reception system, the steps such as multi-channel demodulator are carried out including the Dynamic Signal to multichannel communication reception system；The detection method that the present invention is used does not apply rejecting outliers mode directly, so as to good adaptive characteristic, be conducive to improving systematic function, and strong antijamming capability during detection so that whole multichannel communication reception system has good receptivity.
Description
Technical field
The invention belongs to wireless communication technology field.Specifically related to a kind of dynamic letter based on multichannel communication reception system
Number detection method.
Background technology
In super narrow bandpass letter, how discriminatory carrier is a key, for terminal, can be on one sub-carrier
Carry out transmission information, but, on base station, it is necessary to detect subcarrier in a frequency range.Terminal is to be randomly chosen a son
Carrier wave carrys out transmission information, therefore, in extreme situations, base station allows for detect at any time may on multiple subcarriers
Information transfer.This subcarrier detection in, one be subcarrier quantity it is many, another is exactly narrow bandwidth, so difficult
Degree is just relatively higher.We when treatment, the method combined using feature detection and energy measuring.After energy measuring, detection
Lead code discriminates whether it is the signal of oneself.But in multichannel communication reception system, if Dynamic Signal can not be timely
Detection can then cause that adaptive characteristic is poor, and antijamming capability is low during detection, and receptivity is poor.
The content of the invention
The invention aims to overcome a kind of dynamic letter based on multichannel communication reception system of above-mentioned not enough offer
Number detection method.
A kind of dynamic signal detection method based on multichannel communication reception system, including step:
Dynamic Signal to multichannel communication reception system carries out multi-channel demodulator；
The Dynamic Signal of multichannel communication reception system is by after multi-channel demodulator, obtaining the base band data of each subchannel；
Adjudicate with the presence or absence of effective frame information on each channel, if there is frame information, it is necessary to further be carried out to data
Synchronization and demodulation process；
When not existing effective information on individual channel, then the energy on the channel is exactly the energy of noise, once have
Information sends, then the energy on channel is then signal.
Further, the Dynamic Signal to multichannel communication reception system carries out concretely comprising the following steps for multi-channel demodulator：
The circulation First Input First Output that the region for receiving data regards that depth is M as will be deposited in memory, wherein 0<M<
3；
Each direct memory access data-moving consumes a memory cell, after M direct memory access transmission
Circulation, so as to ensure the complete of a frame data；
Before each direct memory access is transmitted, the judgement and restructuring of the effective frame signal in N roads are completed, wherein 1<N<
1000。
Further, the step of on described each channel of judgement with the presence or absence of effective frame information, is specially：
Sampled data is obtained, the sampled data is cached；
Detect that each channel, with the presence or absence of sampled data, such as has sampled data, then to node sending signal, node is received
After signal, enter a judgement, if only receiving the signal of single information source node, be sent to after directly amplifying to signal under its correspondence
The node of one topology；Otherwise, after carrying out network code and data frame dispersion restructuring, it is sent to a node.
Further, each direct memory access data-moving consumes a memory cell, and M times direct memory is visited
The step of Posterior circle for asking transmission, is specially：
Each frame is received into data write-in memory, number of times is recycled in record storage, according to recycling number of times
Update current data buffer area；
After a frame data are write to memory, when write pointer adds M, the corresponding logical address of pointer is mapped to renewal
In current data caching regional address, a memory cell is consumed；
Above-mentioned circulation is carried out after M direct memory access transmission.
Further, before each direct memory access is transmitted, the judgement and restructuring of the effective frame signal in N roads are completed
Specially：
Frame signal to be sent is carried out into channel coding, dispersion restructuring, modulation, the signal after modulation is sent to node；
After node receives signal, enter a judgement, if only receiving the signal of single information source node, directly signal is amplified
The node of the next topology of its correspondence is sent to afterwards；Otherwise, after carrying out network code and data frame dispersion restructuring, it is sent to a section
Point.
The detection method that the present invention is used does not apply rejecting outliers mode directly, so that special with good self adaptation
Property, be conducive to improving systematic function, and strong antijamming capability during detection so that whole multichannel communication reception system has good
Good receptivity.
Brief description of the drawings
Fig. 1 is the inventive method schematic flow sheet.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated：
A kind of dynamic signal detection method based on multichannel communication reception system, including step:
Dynamic Signal to multichannel communication reception system carries out multi-channel demodulator；
The Dynamic Signal of multichannel communication reception system is by after multi-channel demodulator, obtaining the base band data of each subchannel；
Adjudicate with the presence or absence of effective frame information on each channel, if there is frame information, it is necessary to further be carried out to data
Synchronization and demodulation process；
When not existing effective information on individual channel, then the energy on the channel is exactly the energy of noise, once have
Information sends, then the energy on channel is then signal.
The Dynamic Signal to multichannel communication reception system carries out concretely comprising the following steps for multi-channel demodulator：
The circulation First Input First Output that the region for receiving data regards that depth is M as will be deposited in memory, wherein 0<M<
3；
Each direct memory access data-moving consumes a memory cell, after M direct memory access transmission
Circulation, so as to ensure the complete of a frame data；
Before each direct memory access is transmitted, the judgement and restructuring of the effective frame signal in N roads are completed, wherein 1<N<
1000。
The step of on described each channel of judgement with the presence or absence of effective frame information, is specially：
Sampled data is obtained, the sampled data is cached；
Detect that each channel, with the presence or absence of sampled data, such as has sampled data, then to node sending signal, node is received
After signal, enter a judgement, if only receiving the signal of single information source node, be sent to after directly amplifying to signal under its correspondence
The node of one topology；Otherwise, after carrying out network code and data frame dispersion restructuring, it is sent to a node.
Each direct memory access data-moving consumes a memory cell, M direct memory access transmission
Posterior circle the step of be specially：
Each frame is received into data write-in memory, number of times is recycled in record storage, according to recycling number of times
Update current data buffer area；
After a frame data are write to memory, when write pointer adds M, the corresponding logical address of pointer is mapped to renewal
In current data caching regional address, a memory cell is consumed；
Above-mentioned circulation is carried out after M direct memory access transmission.
Before each direct memory access is transmitted, the judgement for completing the effective frame signal in N roads is specially with restructuring：
Frame signal to be sent is carried out into channel coding, dispersion restructuring, modulation, the signal after modulation is sent to node；
After node receives signal, enter a judgement, if only receiving the signal of single information source node, directly signal is amplified
The node of the next topology of its correspondence is sent to afterwards；Otherwise, after carrying out network code and data frame dispersion restructuring, it is sent to a section
Point.
Claims (5)
1. a kind of dynamic signal detection method based on multichannel communication reception system, it is characterised in that including step:
Dynamic Signal to multichannel communication reception system carries out multi-channel demodulator；
The Dynamic Signal of multichannel communication reception system is by after multi-channel demodulator, obtaining the base band data of each subchannel；
Adjudicate with the presence or absence of effective frame information on each channel, if there is frame information, it is necessary to further be synchronized to data
And demodulation process；
When not existing effective information on individual channel, then the energy on the channel is exactly the energy of noise, once there is information
Send, then the energy on channel is then signal.
2. the dynamic signal detection method based on multichannel communication reception system according to claim 1, it is characterised in that
The Dynamic Signal to multichannel communication reception system carries out concretely comprising the following steps for multi-channel demodulator：
The circulation First Input First Output that the region for receiving data regards that depth is M as will be deposited in memory, wherein 0<M<3；
Each direct memory access data-moving one memory cell of consumption, the M Posterior circle of direct memory access transmission,
So as to ensure the complete of a frame data；
Before each direct memory access is transmitted, the judgement and restructuring of the effective frame signal in N roads are completed, wherein 1<N<1000.
3. the dynamic signal detection method based on multichannel communication reception system according to claim 2, it is characterised in that
The step of on described each channel of judgement with the presence or absence of effective frame information, is specially：
Sampled data is obtained, the sampled data is cached；
Detect that each channel, with the presence or absence of sampled data, such as has sampled data, then to node sending signal, node receives signal
Afterwards, enter a judgement, if only receiving the signal of single information source node, it is sent to after directly amplifying to signal and corresponds to next opening up
The node flutterred；Otherwise, after carrying out network code and data frame dispersion restructuring, it is sent to a node.
4. the dynamic signal detection method based on multichannel communication reception system according to claim 2, it is characterised in that
Each direct memory access data-moving consumes a memory cell, the M Posterior circle of direct memory access transmission
The step of be specially：
Each frame is received into data write-in memory, number of times is recycled in record storage, updated according to number of times is recycled
Current data buffer area；
After a frame data are write to memory, when write pointer adds M, the corresponding logical address of pointer is mapped to the current of renewal
In data buffer storage regional address, a memory cell is consumed；
Above-mentioned circulation is carried out after M direct memory access transmission.
5. the dynamic signal detection method based on multichannel communication reception system according to claim 2, it is characterised in that
Before each direct memory access is transmitted, the judgement for completing the effective frame signal in N roads is specially with restructuring：
Frame signal to be sent is carried out into channel coding, dispersion restructuring, modulation, the signal after modulation is sent to node；
After node receives signal, enter a judgement, if only receiving the signal of single information source node, sent out after directly amplifying to signal
It is sent to the node of the next topology of its correspondence；Otherwise, after carrying out network code and data frame dispersion restructuring, it is sent to a node.
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| CN109617838A (en) * | 2019-02-22 | 2019-04-12 | 盛科网络（苏州）有限公司 | Multichannel message converges shared-memory management method and system |
| CN113556404A (en) * | 2021-08-03 | 2021-10-26 | 广东九博科技股份有限公司 | Communication method and system between single disks in equipment |
| CN113613303A (en) * | 2021-08-09 | 2021-11-05 | 电子科技大学 | Millimeter wave communication transmission method based on multichannel technology |
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