CN201550082U - Universal automatic gain control device - Google Patents
Universal automatic gain control device Download PDFInfo
- Publication number
- CN201550082U CN201550082U CN2009202513232U CN200920251323U CN201550082U CN 201550082 U CN201550082 U CN 201550082U CN 2009202513232 U CN2009202513232 U CN 2009202513232U CN 200920251323 U CN200920251323 U CN 200920251323U CN 201550082 U CN201550082 U CN 201550082U
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- control
- automatic gain
- gain control
- analog converter
- mcu
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Abstract
The utility model relates to a universal automatic gain control device used in a mobile communication system, which comprises a wave detector and further comprises an MCU (micro controller unit) and a control/configuration port. The wave detector is sequentially connected with an ADC digital-to-analog converter, an arithmetic device and a DAC digital-to-analog converter of the MCU. The arithmetic device of the MCU is connected with the control/configuration port. The characteristics of the universal automatic gain control device are as follows: the universality is good, the control method is flexible, and various requirements can be met by changing configurations as well as settings; the algorithm is unique, the control speed is high, and the control precision is high; a circuit is simple; the control process can be integrated into other control processes as a controlled sub-process; in addition, link gains and power can be indicated in real time in the control process.
Description
Technical field
The utility model relates to gain control in the communications field, particularly a kind of general automatic gain control equipment of mobile communication system that is used for.
Background technology
In mobile communication, automatic gain control equipment is used for distributing and adjustment link gain scope, and protection back level equipment.Automatic gain control equipment is a special equipment, and versatility is poor; Control is inconvenient, can not carry out the setting and the configuration of Control Parameter; The realization technology is the FEEDBACK CONTROL of the image data of closed loop, can not control time delay, can not be as the indicating device of channel gain.
Summary of the invention
In view of the problem that prior art exists, the utility model provides a kind of and can be configured and be provided with according to application requirements, but control rate is fast, the high repeated configuration of control precision, may command time delay, and can be used as the indicating device of channel gain.
The utility model for achieving the above object, the technical scheme of being taked is: a kind of general automatic gain control equipment, comprise wave detector, it is characterized in that: also comprise single-chip microcomputer and control/configured port, described wave detector is connected with ADC digital to analog converter, arithmetic unit, the DAC digital to analog converter of single-chip microcomputer successively, and the arithmetic unit of single-chip microcomputer is connected with described control/configured port.
Characteristics of the present utility model are: 1, versatility is good, control mode is flexible, can and be provided with by the change configuration, satisfies various demands; 2, unique algorithm, control rate is fast, control precision is high; 3, circuit is simple; 4, control procedure can be used as controlled subprocess and is integrated in other control procedures; 5, in control procedure, can indicate link gain and power in real time.
Description of drawings
Fig. 1 is the utility model circuit connection diagram and as Figure of abstract.
Fig. 2 is the utility model control/configured port schematic diagram.
Fig. 3 is the utility model control algolithm schematic diagram.
Fig. 4 is the utility model software control flow chart.
Embodiment
As shown in Figure 1, general automatic gain control equipment comprises wave detector, gathers port, control port, also comprises single-chip microcomputer and control/configured port.Single-chip microcomputer comprises: ADC digital to analog converter, arithmetic unit, DAC digital to analog converter connect.Wave detector links to each other with the ADC digital to analog converter of single-chip microcomputer and has constituted collector.Gather port, collector, arithmetic unit by data wire series connection transmission image data; Arithmetic unit, controller, control port are by the data wire transmitting control data of connecting, and control port is connected with variable gain amplifier in the passage, and control/configured port is connected with arithmetic unit by control/configuration bus or software interface.Acquisition parameter, computing parameter and Control Parameter all can dispose and be provided with according to demand, and collector, arithmetic unit and controller all can be connected indicating equipment; Collector can be judged the reiving/transmitting state of passage.
As shown in Figure 2, the general automatic gain control equipment control/configuration mode shown in the control/configured port is: control/configuration bus is by address wire, data wire, enable line, and the signal on the address wire is responsible for selecting control/Configuration Type; Signal on the data wire is responsible for transmitting control/configuration parameter; Signal controlling automatic gain control equipment state on the enable line; Data wire also can be used to transmit the information that can reflect the controlled object operating state.Workflow is: initialization internal register and buffer memory, control startup by the acquiescence mode, and image data frame by frame, arithmetic unit is data processing method and require control method work as requested, generates in the control data writing controller.The computing parameter of arithmetic unit is by address wire and data wire configuration, and these configurations will come into force at next control cycle during operation.
As shown in Figure 3, the arithmetic unit implementation is: image data is sent into smoothing filter, reject gross error, according to the compute mode and the computing parameter that are provided with, calculate channel status, these values that characterize state are carried out analysis-by-synthesis in the segmentation arithmetic unit, obtain the controlled quentity controlled variable in the different segmentations, and, do to deliver to controller after the certain time-delay to this controlled quentity controlled variable integral processing.When the calculation control amount, have inertial element and sluggish link, avoid the wrong and frequent saltus step of control.
Fig. 4 is the arithmetic unit workflow: for after enabling, begin to open collector at the arbitration functions enable signal, collection begins computing after finishing, and calculates passage and receives situation.When obtaining behind the result that information returned to display device, carry out controlled quentity controlled variable and calculate,,, change channel gain so be sent to controller immediately in the gap of twice reception owing to can not change channel gain in the receiving course.
Claims (1)
1. general automatic gain control equipment, comprise wave detector, it is characterized in that: also comprise single-chip microcomputer and control/configured port, described wave detector is connected with ADC digital to analog converter, arithmetic unit, the DAC digital to analog converter of single-chip microcomputer successively, and the arithmetic unit of single-chip microcomputer is connected with described control/configured port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202513232U CN201550082U (en) | 2009-12-04 | 2009-12-04 | Universal automatic gain control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202513232U CN201550082U (en) | 2009-12-04 | 2009-12-04 | Universal automatic gain control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550082U true CN201550082U (en) | 2010-08-11 |
Family
ID=42605267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202513232U Expired - Fee Related CN201550082U (en) | 2009-12-04 | 2009-12-04 | Universal automatic gain control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201550082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155848A1 (en) * | 2012-02-29 | 2012-11-22 | 中兴通讯股份有限公司 | Automatic gain control method and device |
| CN107919860A (en) * | 2017-10-19 | 2018-04-17 | 西安安森智能仪器股份有限公司 | A kind of digital resources obtainment amplifying circuit fine-tuned and its control method |
-
2009
- 2009-12-04 CN CN2009202513232U patent/CN201550082U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155848A1 (en) * | 2012-02-29 | 2012-11-22 | 中兴通讯股份有限公司 | Automatic gain control method and device |
| CN107919860A (en) * | 2017-10-19 | 2018-04-17 | 西安安森智能仪器股份有限公司 | A kind of digital resources obtainment amplifying circuit fine-tuned and its control method |
| CN107919860B (en) * | 2017-10-19 | 2024-01-26 | 西安安森智能仪器股份有限公司 | Fine-adjustment digital automatic gain control amplifying circuit and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20111204 |