CN110708040A - Matched filtering equipment - Google Patents
Matched filtering equipment Download PDFInfo
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- CN110708040A CN110708040A CN201910977448.1A CN201910977448A CN110708040A CN 110708040 A CN110708040 A CN 110708040A CN 201910977448 A CN201910977448 A CN 201910977448A CN 110708040 A CN110708040 A CN 110708040A
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- filter
- input signal
- power amplifier
- analog switch
- matched
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- 238000001914 filtration Methods 0.000 title claims abstract description 30
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Amplifiers (AREA)
Abstract
The present invention provides a matched filtering apparatus, comprising: the device comprises a first analog switch, a filter, a controllable power amplifier and an interconnection connector; the filter is used for filtering out-of-band sub-signals in an input signal input into the matched filtering equipment; the controllable power amplifier is used for controlling the strength of the input signal; the first analog switch is used for controlling whether the input signal passes through the filter or not; the interconnection connector is used for interconnecting the matching equipment with an external system so as to transmit the input signal to the external system. The invention can control whether the input signal passes through the filter or not through the first analog switch, thereby enabling the matched filtering equipment to accept more signals with different frequencies without being limited by the bandwidth of the filter.
Description
Technical Field
The invention relates to the technical field of electronic communication, in particular to matched filtering equipment.
Background
In electronic information systems such as communications, radar, sonar, and the like, despite various signal detection methods, a matched filter is still the most commonly used classical detector, and can filter out-of-band signals, improve in-band signal energy, and provide signals of appropriate amplitude and bandwidth for subsequent processing.
However, the signal frequency range of the matched filter is not wide enough, so that the bandwidth of the matched filter is narrow, and the power of the power amplifier is relatively low, thereby limiting the use range of the filter.
Disclosure of Invention
In order to solve the above problem, the matched filter apparatus provided by the present invention can control whether the input signal passes through the filter through the first analog switch, so that the matched filter apparatus can accept more signals with different frequencies without being limited by the bandwidth of the filter.
The present invention provides a matched filtering apparatus, comprising: the device comprises a first analog switch, a filter, a controllable power amplifier and an interconnection connector;
the filter is used for filtering out-of-band sub-signals in an input signal input into the matched filtering equipment; the controllable power amplifier is used for controlling the strength of the input signal; the first analog switch is used for controlling whether the input signal passes through the filter or not; the interconnection connector is used for interconnecting the matching equipment with an external system so as to transmit the input signal to the external system.
Optionally, the filter, the controllable power amplifier and the interconnection connector are sequentially connected in series, a receiving end of the filter serves as an input end of the matched filtering device, and an output end of the interconnection connector serves as an output end of the matched filtering device.
Optionally, the matched filtering apparatus further includes: a second analog switch for controlling whether the input signal passes through the controllable power amplifier.
Optionally, the first analog switch is connected in parallel with the filter.
Optionally, the second analog switch is connected in parallel with the power amplifier.
Optionally, a controller is connected to the interconnection connector, and the controller is configured to send a control signal to the controllable power amplifier through the interconnection connector to adjust the amplification power of the controllable power amplifier to the input signal.
Optionally, the frequency range of the input signal is 5MHz to 6500 MHz.
Optionally, the bandwidth of the filter is in a range of 10MHz to 400 MHz.
Optionally, the power range of the controllable power amplifier is 0dB to 23 dB.
According to the matched filtering device provided by the embodiment of the invention, whether an input signal passes through the filter can be controlled through the first analog switch, so that the matched filtering device can receive more signals with different frequencies without being limited by the bandwidth of the filter.
Drawings
Fig. 1 is a schematic structural diagram of a matched filter apparatus according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a matched filter device, referring to fig. 1, fig. 1 shows a schematic structural diagram of a matched filter device according to an embodiment of the present application, the matched filter device including: a first analog switch, a filter, a controllable power amplifier, and an interconnection connector.
The filter is used for filtering out-of-band sub-signals in an input signal input into the matched filtering equipment; the controllable power amplifier is used for controlling the strength of the input signal; the first analog switch is used for controlling whether the input signal passes through the filter or not; the interconnection connector is used for interconnecting the matching equipment with an external system so as to transmit the input signal to the external system.
The filter, the controllable power amplifier and the interconnection connector are sequentially connected in series, the receiving end of the filter serves as the input end of the matched filtering equipment, and the output end of the interconnection connector serves as the output end of the matched filtering equipment.
The matched filtering apparatus further includes: a second analog switch for controlling whether the input signal passes through the controllable power amplifier. Wherein the first analog switch is connected in parallel with the filter, so that the filter is flexibly configurable; the second analog switch is connected in parallel with the power amplifier. The input signal passes through the first analog switch when the first analog switch is closed, and does not pass through the filter; when the first analog switch is switched off, the input signal does not pass through the first analog switch, but passes through the filter for filtering and noise reduction; the input signal passes through the second analog switch without passing through the controllable power amplifier when the second analog switch is closed; when the second analog switch is turned off, the input signal does not pass through the second analog switch but passes through the controllable power amplifier to adjust the strength of the input signal.
The interconnection connector is connected with a controller, and the controller is used for sending a control signal to the controllable power amplifier through the interconnection connector so as to adjust the amplification power of the controllable power amplifier to the input signal. The controller controls the amplification power of the controllable power amplifier through the control signal so as to compensate the input signal filtered by the filter, so that the controllable power amplifier can be dynamically set, and a proper signal amplitude is provided for processing the output signal of the subsequent stage of matched filtering equipment. In this embodiment, the power range of the controllable power amplifier is 0dB to 23 dB.
The matched filtering device is connected with the filter in parallel, the second analog switch is connected with the power amplifier in parallel, and the interconnection connector is connected with the controller, so that the matched filtering device can receive the input signal with the frequency range of 5 MHz-6500 MHz under the condition that the bandwidth range of the filter is 10 MHz-400 MHz, and the frequency range of the input signal received by the matched filtering device is larger than the bandwidth range of the filter.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A matched filtering device, comprising: the device comprises a first analog switch, a filter, a controllable power amplifier and an interconnection connector;
the filter is used for filtering out-of-band sub-signals in an input signal input into the matched filtering equipment; the controllable power amplifier is used for controlling the strength of the input signal; the first analog switch is used for controlling whether the input signal passes through the filter or not; the interconnection connector is used for interconnecting the matching equipment with an external system so as to transmit the input signal to the external system.
2. The matched filter device according to claim 1, wherein the filter, the controllable power amplifier and the interconnection connector are connected in series in sequence, and the receiving end of the filter is used as the input end of the matched filter device, and the output end of the interconnection connector is the output end of the matched filter device.
3. The matched filtering apparatus according to claim 1 or 2, further comprising: a second analog switch for controlling whether the input signal passes through the controllable power amplifier.
4. The matched filter apparatus of claim 1, wherein the first analog switch is connected in parallel with the filter.
5. The matched filter apparatus of claim 3, wherein the second analog switch is connected in parallel with the power amplifier.
6. The matched filter apparatus according to claim 1, wherein a controller is connected to the interconnection connector, and the controller is configured to send a control signal to the controllable power amplifier through the interconnection connector to adjust the amplification power of the input signal by the controllable power amplifier.
7. The matched filtering apparatus according to claim 1, wherein the frequency range of the input signal is 5MHz to 6500 MHz.
8. The matched filter apparatus of claim 1, wherein the bandwidth of the filter is in the range of 10MHz to 400 MHz.
9. The matched filter apparatus of claim 1, wherein the power range of the controllable power amplifier is 0dB to 23 dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910977448.1A CN110708040A (en) | 2019-10-14 | 2019-10-14 | Matched filtering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910977448.1A CN110708040A (en) | 2019-10-14 | 2019-10-14 | Matched filtering equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110708040A true CN110708040A (en) | 2020-01-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910977448.1A Pending CN110708040A (en) | 2019-10-14 | 2019-10-14 | Matched filtering equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN110708040A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266227Y (en) * | 1996-06-24 | 1997-10-29 | 哈尔滨工业大学 | Multi-channel sound surface narrow-band matched filter set |
| CN1326614A (en) * | 1998-09-22 | 2001-12-12 | 夸尔柯姆股份有限公司 | High efficiency switched gain power amplifier |
| CN101069348A (en) * | 2004-10-01 | 2007-11-07 | 汤姆森特许公司 | Signal input circuit |
| CN104137424A (en) * | 2012-02-23 | 2014-11-05 | 高通股份有限公司 | Wireless device with filters to support co-existence in adjacent frequency bands |
| GB201522373D0 (en) * | 2015-12-18 | 2016-02-03 | Nordic Semiconductor Asa | Radio frequency receiver |
| CN109286384A (en) * | 2017-07-20 | 2019-01-29 | 株式会社村田制作所 | Multiplexer, high-frequency front-end circuit and communication device |
-
2019
- 2019-10-14 CN CN201910977448.1A patent/CN110708040A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2266227Y (en) * | 1996-06-24 | 1997-10-29 | 哈尔滨工业大学 | Multi-channel sound surface narrow-band matched filter set |
| CN1326614A (en) * | 1998-09-22 | 2001-12-12 | 夸尔柯姆股份有限公司 | High efficiency switched gain power amplifier |
| CN101069348A (en) * | 2004-10-01 | 2007-11-07 | 汤姆森特许公司 | Signal input circuit |
| CN104137424A (en) * | 2012-02-23 | 2014-11-05 | 高通股份有限公司 | Wireless device with filters to support co-existence in adjacent frequency bands |
| GB201522373D0 (en) * | 2015-12-18 | 2016-02-03 | Nordic Semiconductor Asa | Radio frequency receiver |
| CN109286384A (en) * | 2017-07-20 | 2019-01-29 | 株式会社村田制作所 | Multiplexer, high-frequency front-end circuit and communication device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200117 |
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| WD01 | Invention patent application deemed withdrawn after publication |