CN1996827A - An intelligent control method for the determination point of the optical receiver - Google Patents
An intelligent control method for the determination point of the optical receiver Download PDFInfo
- Publication number
- CN1996827A CN1996827A CNA2006100326177A CN200610032617A CN1996827A CN 1996827 A CN1996827 A CN 1996827A CN A2006100326177 A CNA2006100326177 A CN A2006100326177A CN 200610032617 A CN200610032617 A CN 200610032617A CN 1996827 A CN1996827 A CN 1996827A
- Authority
- CN
- China
- Prior art keywords
- yard
- control method
- intelligence control
- error correction
- determination point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 title claims description 5
- 230000005540 biological transmission Effects 0.000 description 16
- 238000000605 extraction Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Optical Communication System (AREA)
Abstract
This invention discloses one intelligent control method of light receive judgment point, which comprises the following steps: when received zero codes is changed into one code with number larger than corrected number of zero code and improving receive judgment point; when the zero code is changed into one zero with number less than zero time number to lower judgment point; when the zero code is changed into one code number with same to the corrected zero number closing the adjustment.
Description
Technical field
The invention belongs to digital fiber transmission system technical field, relate to a kind of intelligence control method of realizing at the light signal receiving terminal, relate in particular to a kind of intelligence control method of optical receiver determination point.
Background technology.
The sharpest edges of Optical Fiber Transmission are in the prior art, solved the signal transmission of long distance or extra long distance (tens kilometers), and be the transmission that can't harm, extremely scabrous problem is able to reasonable solution in the middle of these feasible many engineerings in the past, greatly expanded range of application, in many specific occasions, the occasion very bad as electromagnetic environment, as: warship, transformer station, power station etc.The anti-interference characteristics of Optical Fiber Transmission are given full play to, expanded the scope that the signal transmission is used, the thoughtcast of simultaneously full optical fiber is compared with the pattern of traditional dummycable, its advantage is self-evident, also must bring a lot of new chance and growth point, and this is confirmed, and under many occasions, the integrated cost of digital fiber pattern can be compared with simulation, cable mode, even may also will hang down, and this provides possibility for later extensive application.
But light signal is after long distance transmission in the prior art, and multi-form distortion can take place the eye pattern of light signal, has caused signal extraction and signal to recover all very difficulty, has caused a large amount of generation of error code, has had a strong impact on the quality of signal transmission.
Summary of the invention
Provided by the present invention is a kind of intelligence control method of light-receiving determination point, has solved the problem of the eye pattern deformation of light signal, has improved efficiency of transmission and transmission range, and has significantly reduced the generation of error code.
For solving the problems of the technologies described above, technical solution of the present invention comprises:
A kind of intelligence control method of optical receiver determination point, described intelligence control method may further comprise the steps:
A, when 0 yard of receiving through become after the error correction 1 yard count value number greater than 1 yard that receives when becoming 0 yard the number of count value after the error correction, receive the determination point level and heighten;
B, when 0 yard of receiving through become after the error correction 1 yard count value number less than 1 yard that receives when becoming 0 yard the number of count value after the error correction, receive the determination point level and turn down;
C, when balanced mutually, adjust end through the number that becomes 0 yardage numerical value after the error correction with 1 yard that receives through the number that becomes 1 yard count value after the error correction when 0 yard of receiving.
Described intelligence control method, wherein, described intelligence control method is further comprising the steps of:
D, powering on when initial, inserting the back phase place is adjusted detecting for the first time the normal light signal.
Described intelligence control method, wherein, described intelligence control method is further comprising the steps of:
E, obtaining phase place adjustment when instruction, phase place is being adjusted after finishing in that the determination point Heibei provincial opera is whole.
Adopt method provided by the present invention, can make control appliance search out best signal decision point, and can be with 0 in the data code flow, 1 signal recovers out more accurately, make receiver on performances such as signal extraction and recovery, obtain largest optimization, improved receiving sensitivity, reduced the generation of error code, simultaneously improve efficiency of transmission greatly, significantly increased transmission range.
Description of drawings
Fig. 1 is the intelligence controlling device schematic diagram among the present invention;
Fig. 2 is the intelligence controlling device schematic flow sheet among the present invention;
Fig. 3 is that decision level of the present invention is adjusted flow chart automatically;
Fig. 4 is that judgement phase place of the present invention is adjusted flow chart automatically;
Wherein, E is an opto-electronic conversion among Fig. 1, and J is a decision circuit, and H is synchronous and overhead extraction, S is that check code generates, and C is that the error code statistics is extracted, and M is judgement control, a: the number that is 0 error code, b is the number of 1 error code, and t is the decision threshold adjustment, and p is the adjustment of judgement phase place.
Embodiment
Below with reference to giving accompanying drawing, carry out comparatively detailed explanation at preferred embodiment of the present invention.
As Fig. 1 and shown in Figure 2, provided by the present invention is a kind of intelligence control method of light-receiving determination point, has solved the problem of the eye pattern deformation of light signal, has improved efficiency of transmission and transmission range, and has significantly reduced the generation of error code.
As Fig. 1 and shown in Figure 2, when the error code detection system was arranged, 0,1 the error code numeration that utilizes detected error code circuit was for according to calculating, and decision level is adjusted up and down; And to power on when initial, perhaps when obtaining phase place adjustment instruction, phase place adjusted accordingly.
As shown in Figure 2, when triggering the instruction of appointment, decision circuit is incited somebody to action synchronous for information about and overhead extraction, generating check code and error code statistics simultaneously extracts, and described check code will enter into described error code statistics and extract, described error code statistics is extracted number a with 0 error code and is sent to judgement with 1 error code number b and controls, and when a＞b, thresholding is heightened; When b＞a, then thresholding is turned down; Work as a=b=0, perhaps a=b then adjusts end when both 0 error code number is balanced mutually with 1 error code number, and will adjust strategy and resend to described decision circuit.Wherein, described 0 yard error code be receive be 0 yard through becoming 1 yard count value after the error correction.Described 1 yard error code be receive be 1 yard through becoming 0 yard count value after the error correction.This shows, the present invention compared with prior art, technical solution of the present invention has improved receiving sensitivity, has reduced the generation of error code.
Further technical solution of the present invention is described in detail below with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, when line status worsens, error code will appear in the transmission course, and can adjust signal judgement basic point this moment according to the number a of described 0 error code and the different conditions of described 1 error code number b error code, so that determination point is in optimum state, improve the receiving sensitivity of receiver.
As shown in Figure 2, at first carry out the adjustment of incoming level, adjust down mutually when a will receive decision level during greater than b; Go up mutually and adjust when a will receive decision level during less than b, thereby make error code a and b be in the state of equity as far as possible, and then phase place is finely tuned, error code a that makes and b further realize reciprocity state; But above step needs certain time interval to make determination point stable, thereby reaches the purpose of stability line line state.When finding relative optimal judgement point, finish one and take turns adjustment.
As shown in Figure 3 and Figure 4, after error code appears in signal transmission, at first decision level is adjusted, stopped when difference minimum or error code are zero adjusting to, then, search suitable judgement phase place according to the situation of setting again according to the difference of 0,1 error code; But phase place will be adjusted according to error condition and trend, so that obtain the minimum optimum that gets of error code.As seen, adopt the present invention to improve efficiency of transmission greatly, significantly increased transmission range.
More further technical solution of the present invention is described below with reference to Fig. 3 and Fig. 4.
As shown in Figure 3,, calculate the difference of described 1 error code and 0 error code, when difference is zero, end adjustment process when decision level when the adjustment time meets the demands automatically; If adjusted last time when being not negative justification, stop the adjustment state, advance one and do not judge whether to powering on initial or receive regulating command, if not, then stop to adjust, if then phase place is adjusted; If adjusted when being negative justification last time, readjusting the adjustment state is the forward adjustment, and decision level continues to adjust downwards; If adjusted last time when being not positive justification, stop the adjustment state, advance one and do not judge whether to powering on initial or receive regulating command, if not, then stop to adjust, if then phase place is adjusted; If adjusted when being positive justification last time, readjusting the adjustment state is the negative sense adjustment, and decision level continues to adjust upward.
As shown in Figure 4, the self-adjusting idiographic flow of judgement phase place is as follows among the present invention:
Decision level is adjusted automatically, judges whether then to powering on initial or receive regulating command, if not, return results then; If, then further phase place is adjusted, pointwise is tested phase place and is noted down the error code number then, finds the minimum corresponding working point of error code, writes down described working point, and writes the control corresponding device, last return results.Because error code can appear in the adjustment of judgement phase place, need under situation about allowing, carry out again.Simultaneously should be after the level adjustment finishes.
In sum, adopt method provided by the present invention, make receiver on performances such as signal extraction and recovery, obtain largest optimization, improved receiving sensitivity, reduce the generation of error code, improved efficiency of transmission greatly simultaneously, significantly increased transmission range.
Should be understood that, more than the comparatively detailed explanation carried out at patent of the present invention should not be construed as the protection range of patent of the present invention, the protection range of patent of the present invention should be as the criterion with claims.
Claims (3)
1, a kind of intelligence control method of optical receiver determination point, described intelligence control method may further comprise the steps:
A, when 0 yard of receiving through become after the error correction 1 yard count value number greater than 1 yard that receives when becoming 0 yard the number of count value after the error correction, receive the determination point level and heighten;
B, when 0 yard of receiving through become after the error correction 1 yard count value number less than 1 yard that receives when becoming 0 yard the number of count value after the error correction, receive the determination point level and turn down;
C, when balanced mutually, adjust end through the number that becomes 0 yardage numerical value after the error correction with 1 yard that receives through the number that becomes 1 yard count value after the error correction when 0 yard of receiving.
2, intelligence control method according to claim 1 is characterized in that, described intelligence control method is further comprising the steps of:
D, powering on when initial, inserting the back phase place is adjusted detecting for the first time the normal light signal.
3, intelligence control method according to claim 1 is characterized in that, described intelligence control method is further comprising the steps of:
E, obtaining phase place adjustment when instruction, phase place is being adjusted after finishing in that the determination point Heibei provincial opera is whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100326177A CN1996827B (en) | 2005-12-31 | 2005-12-31 | An intelligent control method for the determination point of the optical receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100326177A CN1996827B (en) | 2005-12-31 | 2005-12-31 | An intelligent control method for the determination point of the optical receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1996827A true CN1996827A (en) | 2007-07-11 |
| CN1996827B CN1996827B (en) | 2012-05-16 |
Family
ID=38251786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100326177A Expired - Fee Related CN1996827B (en) | 2005-12-31 | 2005-12-31 | An intelligent control method for the determination point of the optical receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1996827B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6918069B2 (en) * | 2002-04-16 | 2005-07-12 | Cisco Technology, Inc. | Optimum threshold for FEC transponders |
-
2005
- 2005-12-31 CN CN2006100326177A patent/CN1996827B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1996827B (en) | 2012-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1214544C (en) | Communication method and its power control | |
| CN100539405C (en) | The Method and circuits of automatic gain control is provided in signal processing | |
| CN103457673B (en) | Improve the method and apparatus of APD optical receiver saturated light power | |
| CN1897475B (en) | Optical-fiber time-delay measuring method and circuit for digital direct-emitting station system | |
| CN110138063A (en) | Match cognization system and method based on middle high-power wireless charging equipment | |
| CN108053659A (en) | A kind of crossing traffic signal control method, apparatus and system based on tramcar | |
| CN1996827B (en) | An intelligent control method for the determination point of the optical receiver | |
| CN101262282A (en) | A method and device for improving reliability of passive optical network | |
| CN1996770A (en) | A method for the chip precise synchronization in the initial searching of the user terminal cell | |
| CN101090294A (en) | Optical wireless communication device | |
| CN1897478B (en) | Wave-detecting synchronizer of time-division synchronizing CDMA digital high-frequency amplification station | |
| CN103973368B (en) | A kind of compensating adaptive dispersion method of adjustment | |
| CN1897747B (en) | Uplink and downlink self-adaptive switching method of time-division synchronous CDMA digital optical fiber direct station | |
| RU2463708C1 (en) | Method and apparatus for optimising decision threshold level of optical receiver | |
| CN101197613B (en) | Method and system for anti-interference synchronization | |
| WO2011079610A1 (en) | Method and apparatus for adaptive dispersion compensation | |
| CN210270559U (en) | Pass sensing and controlling system for swing gate channel | |
| WO2007141846A1 (en) | Dispersion compensation control device and dispersion controlled variable search method | |
| CN103051380A (en) | Method for automatically adjusting power consumption of optical transmitter-receiver | |
| CN101931451A (en) | Self-excitation processing method for repeater | |
| CN101110643B (en) | System and method for implementing wavelength centralized adjustment and control | |
| IL164114A0 (en) | Method and system for controlling optical network | |
| CN103346818B (en) | HFC gain adjustment method, HFC transponder and HFC response system | |
| CN101335541B (en) | Method implementing data synchronization between main and spare circuit board | |
| CN101185270B (en) | Uplink synchronization method in mobile communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120516 |