CN105099478A - Apparatus and method for improving receiving sensitivity of RF link - Google Patents
Apparatus and method for improving receiving sensitivity of RF link Download PDFInfo
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- CN105099478A CN105099478A CN201510520477.7A CN201510520477A CN105099478A CN 105099478 A CN105099478 A CN 105099478A CN 201510520477 A CN201510520477 A CN 201510520477A CN 105099478 A CN105099478 A CN 105099478A
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Abstract
The present invention discloses an apparatus and a method for improving a receiving sensitivity of a RF link belonging to the communication field. The apparatus includes a signal receiving module, a signal amplifying module and a signal processing module. The signal processing module receives a wireless communication signal and transmits the wireless communication signal to the signal amplifying module. The signal amplifying module amplifies the received wireless communication signal so as to acquire a first signal, and transmits the first signal to the signal processing module. The signal processing module demodulates the received first signal so as to acquire a second signal. The apparatus and the method solve a problem that: in related inventions, an RF module includes an antenna and a receiver connected to the antenna, a weak signal enters into the receiver through the antenna after being interfered, but the weak signal often can not be normally decoded. The apparatus and the method enhance an intensity of the signal received by the receiver and enable the received signal to be normally demodulated and decoded so as to acquire an effect of the demodulating signal with a low error rate.
Description
Technical field
The disclosure relates to the communications field, particularly a kind of apparatus and method improving radio frequency link receiving sensitivity.
Background technology
Metal shell is used to become trend on mobile terminals.At present, a lot of mobile terminal all designs according to complete machine metallization.
When mobile terminal adopts full metal jacket, wireless signal can be received to mobile terminal and form interference.In other words, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after interference enters receiver by antenna.But this small-signal often can not normal decoder.
Summary of the invention
The disclosure provides a kind of apparatus and method improving radio frequency link receiving sensitivity.Technical scheme is as follows:
According to the first aspect of disclosure embodiment, provide a kind of device improving radio frequency link receiving sensitivity, this device comprises: the signal receiving module, signal amplification module and the signal processing module that are connected successively;
Signal receiving module receives wireless communication signals and is sent to signal amplification module;
Signal amplification module amplifies the wireless communication signals received, and obtains the first signal, and the first signal is sent to signal processing module;
Signal processing module carries out demodulation to the first signal received, and obtains secondary signal.
As the optional execution mode of one, signal amplification module, comprising: a low noise amplifier, and the input of low noise amplifier is connected with signal receiving module, and the output of low noise amplifier is connected with signal processing module.
As the optional execution mode of one, signal amplification module, comprise: selector switch and at least two low noise amplifiers, the common port of selector switch is connected with signal receiving module, the input of each low noise amplifier is connected with selector switch selecting side, and the output of each low noise amplifier is connected with signal processing module input.
As the optional execution mode of one, non-overlapping copies between at least two each self-corresponding working frequency range of low noise amplifier.
As the optional execution mode of one, signal receiving module is antenna;
Signal processing module is receiver.
According to the second aspect of disclosure embodiment, a kind of method improving radio frequency link receiving sensitivity is provided, be applied to the device of the arbitrary raising radio frequency link receiving sensitivity in the first aspect of disclosure embodiment and Alternate embodiments thereof, this device comprises the signal receiving module, signal amplification module and the signal processing module that are connected successively, and the method comprises:
Wireless communication signals is received by signal receiving module;
The wireless communication signals received by signal receiving module is sent to signal amplification module;
By signal amplification module, wireless communication signals is amplified, obtain the first signal;
The first signal obtained by signal amplification module is sent to signal processing module;
By signal processing module, demodulation is carried out to the first signal received, obtain secondary signal.
As the optional execution mode of one, signal amplification module comprises a low noise amplifier;
By signal amplification module, wireless communication signals is amplified, obtains the first signal, comprising:
By low noise amplifier, wireless communication signals is amplified, obtain the first signal.
As the optional execution mode of one, signal amplification module comprises selector switch and at least two low noise amplifiers;
By signal amplification module, wireless communication signals is amplified, obtains the first signal, comprising:
Control selector switch signal receiving module is connected with i-th low noise amplifier;
Judge whether successfully accessing mobile communication network;
Cannot accessing mobile communication network time, make i=i+1, re-execute and control selector switch and signal receiving module and i-th low noise amplifier are carried out the step that is connected;
When successful accessing mobile communication network, by i-th low noise amplifier, wireless communication signals is amplified, obtain the first signal.
As the optional execution mode of one, control selector switch and signal receiving module be connected with i-th low noise amplifier, comprising:
According to putting in order of the low noise amplifier preset, control selector switch and signal receiving module is connected with i-th low noise amplifier.
As the optional execution mode of one, receive wireless communication signals by signal receiving module, comprising:
Wireless communication signals is received by antenna.
As the optional execution mode of one, by signal processing module, demodulation is carried out to the first signal, obtains secondary signal, comprising:
By receiver, demodulation is carried out to the first signal, obtain secondary signal.
The technical scheme that embodiment of the present disclosure provides can comprise following beneficial effect:
By comprising signal receiving module, signal amplification module and signal processing module, signal receiving module receives wireless communication signals and is sent to signal amplification module, signal amplification module amplifies wireless communication signals, obtain the first signal, and the first signal is sent to signal processing module, signal processing module carries out demodulation to the first signal, obtains secondary signal; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Should be understood that, it is only exemplary that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
Accompanying drawing to be herein merged in specification and to form the part of this specification, shows and meets embodiment of the present disclosure, and is used from specification one and explains principle of the present disclosure.
Fig. 1 is a kind of structured flowchart improving the device of radio frequency link receiving sensitivity according to an exemplary embodiment;
Fig. 2 is a kind of structured flowchart improving the device of radio frequency link receiving sensitivity according to another exemplary embodiment;
Fig. 3 is a kind of structured flowchart improving the device of radio frequency link receiving sensitivity according to another exemplary embodiment;
Fig. 4 is a kind of flow chart improving the method for radio frequency link receiving sensitivity according to an exemplary embodiment;
Fig. 5 is a kind of flow chart improving the method for radio frequency link receiving sensitivity according to another exemplary embodiment;
Fig. 6 is a kind of flow chart improving the method for radio frequency link receiving sensitivity according to another exemplary embodiment.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Execution mode described in following exemplary embodiment does not represent all execution modes consistent with the disclosure.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that aspects more of the present disclosure are consistent.
Fig. 1 is a kind of structured flowchart improving the device of radio frequency link receiving sensitivity according to an exemplary embodiment, and this device can be mobile phone, computer, digital broadcast terminal, messaging devices, flat-panel devices, personal digital assistant etc. have the electronic equipment of transmission-receiving function.As shown in Figure 1, this device includes but not limited to:
The signal receiving module 102, signal amplification module 104 and the signal processing module 106 that are connected successively.
Signal receiving module 102 receives wireless communication signals and is sent to signal amplification module 104.
Signal amplification module 104 pairs of wireless communication signals amplify, and obtain the first signal, and the first signal is sent to signal processing module 106.
Signal processing module 106 carries out demodulation to the first signal received, and obtains secondary signal.
In sum, the device of the raising radio frequency link receiving sensitivity provided in disclosure embodiment, comprise signal receiving module, signal amplification module and signal processing module, receive wireless communication signals by signal receiving module and be sent to signal amplification module, signal amplification module amplifies wireless communication signals, obtains the first signal, and the first signal is sent to signal processing module, signal processing module carries out demodulation to the first signal received, and obtains secondary signal; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Fig. 2 is a kind of structured flowchart improving the device of radio frequency link receiving sensitivity according to another exemplary embodiment, and this device can be mobile phone, computer, digital broadcast terminal, messaging devices, flat-panel devices, personal digital assistant etc. have the electronic equipment of transmission-receiving function.As shown in Figure 2, this device includes but not limited to:
The signal receiving module 202, signal amplification module 204 and the signal processing module 206 that are connected successively;
Signal receiving module 202 receives wireless communication signals and is sent to signal amplification module 204.
Signal amplification module 204 pairs of wireless communication signals amplify, and obtain the first signal, and the first signal is sent to signal processing module 206.
Signal processing module 206 carries out demodulation to the first signal received, and obtains secondary signal.
Signal receiving module 202 comprises antenna ANT, and signal receiving module 202 is by antenna ANT receiving communication signal.
Alternatively, signal amplification module 204, comprises a low noise amplifier LAN, and the input of low noise amplifier LAN is connected with the antenna ANT of signal receiving module 202, and the output of low noise amplifier LAN is connected with signal processing module 206.
Low noise amplifier LAN is wideband low noise amplifier, and the band limits namely between the upper limit operation frequency of low noise amplifier LAN and lower limit operating frequency is wider.Low noise amplifier LAN can amplify the wireless communication signals of wider frequency segment limit, obtains the first signal.
Alternatively, signal processing module 206 comprises receiver RVR.Receiver RVR is connected with the output of low noise amplifier LAN, can carry out demodulation, obtain secondary signal to the first signal.
Alternatively, receiver RVR is the transceiver having Received signal strength ability simultaneously and send signal capabilities.In the present embodiment, be only that the receiver only with Received signal strength ability illustrates with receiver RVR.
In sum, the device of the raising radio frequency link receiving sensitivity provided in disclosure embodiment, comprise signal receiving module, signal amplification module and signal processing module, receive wireless communication signals by signal receiving module and be sent to signal amplification module, signal amplification module amplifies wireless communication signals, obtains the first signal, and the first signal is sent to signal processing module, signal processing module carries out demodulation to the first signal received, and obtains secondary signal; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Further, due to the working frequency range that low noise amplifier correspondence one is fixing, low noise amplifier can only amplify the signal being in working frequency range, the noise signal be in beyond working frequency range scope can not be amplified, thus can filter the extraneous noise signal of the working frequency range being in low noise amplifier while the signal strength signal intensity strengthening Received signal strength, reach the technique effect of the signal to noise ratio improving Received signal strength.
Fig. 3 is a kind of structured flowchart improving the device of radio frequency link receiving sensitivity according to another exemplary embodiment, and this device can be mobile phone, computer, digital broadcast terminal, messaging devices, flat-panel devices, personal digital assistant etc. have the electronic equipment of transmission-receiving function.As shown in Figure 3, this device includes but not limited to:
The signal receiving module 302, signal amplification module 304 and the signal processing module 306 that are connected successively.
Signal receiving module 302 receives wireless communication signals and is sent to signal amplification module 304.
Signal amplification module 304 amplifies the wireless communication signals received, and obtains the first signal, and described first signal is sent to described signal processing module 306.
Signal processing module 306 carries out demodulation to the first signal received, and obtains secondary signal.
Signal receiving module 302 comprises antenna ANT, and signal receiving module 302 is by antenna ANT receiving communication signal.
Signal amplification module 304, comprises selector switch K and at least two low noise amplifier, is four to be illustrated with the number of low noise amplifier in figure.Four low noise amplifiers are respectively LAN1, LAN2, LAN3 and LAN4.
The common port of selector switch K is connected with the antenna ANT of signal receiving module 302, and the input of each low noise amplifier is connected with selector switch selecting side, and the output of each low noise amplifier is connected with an input of signal processing module 306.As shown in the figure, signal processing module 306 comprises four inputs P1, P2, P3 and P4, the output of low noise amplifier LAN1 is connected with the input P1 of signal processing module 306, and the output of low noise amplifier LAN2 is connected with the input P2 of signal processing module 306 ... the rest may be inferred.
Alternatively, the corresponding working frequency range of each low noise amplifier LAN1, LAN2, LAN3 and LAN4, the working frequency range non-overlapping copies between each low noise amplifier.Relation between low noise amplifier LAN1, LAN2, LAN3 and LAN4 and working frequency range is exemplified below:
| Low noise amplifier | Working frequency range |
| LAN1 | 890-896MHz |
| LAN2 | 897-903MHz |
| LAN3 | 904-909MHz |
| LAN4 | 910-915MHz |
Table one
Alternatively, the working frequency range between each low noise amplifier LAN1, LAN2, LAN3 and LAN4 also can partly overlap or all overlapping.
Alternatively, receiver RVR is the transceiver having Received signal strength ability simultaneously and send signal capabilities.In the present embodiment, be only that the receiver only with Received signal strength ability illustrates with receiver RVR.
Each low noise amplifier can amplify the wireless communication signals being in respective working frequency range scope, and be enhanced signal.
Signal processing module 306 comprises receiver RVR.Receiver RVR is connected with the output of signal amplification module 304, can carry out demodulation, obtain secondary signal to the first signal.
In sum, the device of the raising radio frequency link receiving sensitivity provided in disclosure embodiment, comprise signal receiving module, signal amplification module and signal processing module, receive wireless communication signals by signal receiving module and be sent to signal amplification module, signal amplification module amplifies wireless communication signals, obtains the first signal, and the first signal is sent to signal processing module, signal processing module carries out demodulation to the first signal received, and obtains secondary signal; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Further, because this device comprises multiple low noise amplifier, the working frequency range of the relative narrower that each low noise amplifier correspondence one is fixing, the amplification effect of amplifier can be improved, thus reach the signal strength signal intensity strengthening Received signal strength further, filter the technique effect of the noise signal outside amplifier operation band limits.
Fig. 4 is a kind of flow chart improving the method for radio frequency link receiving sensitivity according to an exemplary embodiment, as shown in Figure 4, the method of this raising radio frequency link receiving sensitivity is applied in the device of the raising radio frequency link receiving sensitivity shown in Fig. 1, this device comprises the signal receiving module 102, signal amplification module 104 and the signal processing module 106 that are connected successively, and the method comprises the following steps.
In step 401, wireless communication signals is received by signal receiving module.
In step 402, the wireless communication signals that signal receiving module receives is sent to signal amplification module.
In step 403, by signal amplification module, wireless communication signals is amplified, obtain the first signal.
Signal amplification module generally includes low noise amplifier.
In step 404, the first signal that signal amplification module obtains is sent to signal processing module.
In step 405, by signal processing module, demodulation is carried out to the first signal received, obtain secondary signal.
Because signal amplification module amplifies the signal of communication that signal receiving module receives, the signal strength signal intensity of signal that therefore signal processing module receives obtains enhancing, and signal to noise ratio have also been obtained lifting.The error rate of the secondary signal obtained of decoding is low.
In sum, the method for the raising radio frequency link receiving sensitivity provided in disclosure embodiment, by receiving wireless communication signals, amplifying wireless communication signals, obtaining the first signal, carrying out demodulation, obtain secondary signal to the first signal received; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Fig. 5 is a kind of flow chart improving the method for radio frequency link receiving sensitivity according to an exemplary embodiment, as shown in Figure 5, the method of this raising radio frequency link receiving sensitivity is applied in the device of the raising radio frequency link receiving sensitivity shown in Fig. 2, this device comprises the signal receiving module 202, signal amplification module 204 and the signal processing module 206 that are connected successively, and the method comprises the following steps.
In step 501, wireless communication signals is received by antenna.
Alternatively, the function that antenna usually has Received signal strength and transmits, in the present embodiment, the function only with antenna with Received signal strength is illustrated.
In step 502, the wireless communication signals that antenna receives is sent to signal amplification module.
Because antenna is connected with signal amplification module, the signal that antenna receives is directly by the input entering signal amplification module of signal amplification module, and the signal amplification module in the present embodiment is that a low noise amplifier is illustrated.
In step 503, by low noise amplifier, wireless communication signals is amplified, obtain the first signal.
In the present embodiment, low noise amplifier is wideband low noise amplifier, and the band limits namely between the upper limit operation frequency of low noise amplifier and lower limit operating frequency is wider.Low noise amplifier can amplify the wireless communication signals of wider frequency segment limit, obtains the first signal.
In step 504, the first signal that signal amplification module obtains is sent to signal processing module.
Because the output of signal amplification module is directly connected with the input of signal processing module, the first signal is by the input arriving signal processing module of signal amplification module.
In step 505, by receiver, demodulation is carried out to the first signal, obtain secondary signal.
Alternatively, receiver is the transceiver having Received signal strength ability simultaneously and send signal capabilities.In the present embodiment, be only that the receiver only with Received signal strength ability illustrates with receiver.
Because low noise amplifier amplifies the signal of communication that antenna receives, and filter the noise signal be in beyond its working frequency range, the signal strength signal intensity of signal that therefore receiver obtains obtains enhancing, and signal to noise ratio have also been obtained lifting.The error rate of the restituted signal that decoding obtains is low.
In sum, the method for the raising radio frequency link receiving sensitivity provided in disclosure embodiment, by receiving wireless communication signals, amplifying wireless communication signals, obtaining the first signal, carrying out demodulation, obtain secondary signal to the first signal received; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Further, due to the working frequency range that low noise amplifier correspondence one is fixing, low noise amplifier can only amplify the signal being in working frequency range, the noise signal be in beyond working frequency range scope can not be amplified, thus can filter the extraneous noise signal of the working frequency range being in low noise amplifier while the signal strength signal intensity strengthening Received signal strength, reach the technique effect of the signal to noise ratio improving Received signal strength.
Fig. 6 is a kind of flow chart improving the method for radio frequency link receiving sensitivity according to an exemplary embodiment, as shown in Figure 6, the method of this raising radio frequency link receiving sensitivity is applied in the device of the raising radio frequency link receiving sensitivity shown in Fig. 3, this device comprises the signal receiving module 302, signal amplification module 304 and the signal processing module 306 that are connected successively, and the method comprises the following steps.
In step 601, wireless communication signals is received by antenna.
Alternatively, the function that antenna usually has Received signal strength and transmits, in the present embodiment, the function only with antenna with Received signal strength is illustrated.
In step 602, the wireless communication signals that signal receiving module receives is sent to signal amplification module.
Signal amplification module comprises selector switch and at least two low noise amplifiers, is four to be illustrated with the number of low noise amplifier in the present embodiment.Four low noise amplifiers are respectively LAN1, LAN2, LAN3 and LAN4.
In step 603A, control selector switch and signal receiving module is connected with i-th low noise amplifier.
Be 1 to be illustrated with i, antenna is connected with the 1st low noise amplifier LAN1 by selector switch, if the frequency of the signal of now antenna reception is in the working frequency range of low noise amplifier LAN1, then signal can be undertaken amplifying by low noise amplifier LAN1 and enter receiver by the input P1 of corresponding frequency band; If the frequency of the signal that antenna receives is not in this frequency range, then signal can not enter low noise amplifier LAN1.
Alternatively, according to putting in order of the low noise amplifier preset, control selector switch and signal receiving module is connected with i-th low noise amplifier.
Putting in order of low noise amplifier can be by the order newly after old arrangement according to the version of the mobile communication protocol corresponding to respective working frequency range.
Wherein the version of mobile communication protocol includes but not limited to 2G (secondgeneration, Generation Mobile Telecommunication System agreement), 3G (thirdgeneration, 3G (Third Generation) Moblie agreement) and 4G (forthgeneration, forth generation mobile communication protocol).Low noise amplifier put in order as the version according to the mobile communication protocol corresponding to its working frequency range is by the order newly after old arrangement, inside the corresponding 4G of the operating frequency as the 1st low noise amplifier LAN1 GSM900MHz use frequency range, the 2nd low noise amplifier LAN2 the corresponding 4G of operating frequency inside GSM1800MHz use frequency range, the 3rd low noise amplifier LAN3 the corresponding 3G of operating frequency the frequency range that uses and the 4th low noise amplifier LAN4 the corresponding 2G of operating frequency the frequency range that uses.
In step 603B, judge whether successfully accessing mobile communication network.
The mobile terminal improving the device place of radio frequency link receiving sensitivity judges the whether successful access to mobile network of mobile terminal.The method judged can be whether signal detected according to the output of low noise amplifier, or alternate manner.
In step 603C, cannot accessing mobile communication network time, make i=i+1, re-execute sub-step 603A.
That is, if, the frequency of signal of communication that receives of antenna is not in the working frequency range of low noise amplifier LAN1, detects that mobile terminal cannot accessing mobile communication network, then controls selector switch and be connected with the 2nd low noise amplifier LAN2 by antenna.
When successful accessing mobile communication network, perform step 604.
In step 604, the first signal that signal amplification module obtains is sent to signal processing module.
In step 605, by receiver, demodulation is carried out to the first signal received, obtain secondary signal.
Because low noise amplifier amplifies the signal of communication that antenna receives, and filter the noise signal be in beyond its working frequency range, the signal strength signal intensity of signal that therefore receiver obtains obtains enhancing, and signal to noise ratio have also been obtained lifting.The error rate of the restituted signal that decoding obtains is low.
In sum, the method for the raising radio frequency link receiving sensitivity provided in disclosure embodiment, by receiving wireless communication signals, amplifying wireless communication signals, obtaining the first signal, carrying out demodulation, obtain secondary signal to the first signal received; Solving relevant open in, the receiver that radio-frequency module includes antenna and is connected with this antenna, the small-signal after disturbing enters receiver by antenna, but this small-signal often can not the problem of normal decoder; Reach the intensity strengthening the signal that receiver receives, the signal proper solution received is in harmonious proportion and decodes, obtain the effect of the restituted signal of low error rate.
Further, because this device comprises multiple low noise amplifier, the working frequency range of the relative narrower that each low noise amplifier correspondence one is fixing, the amplification effect of amplifier can be improved, thus reach the signal strength signal intensity strengthening Received signal strength further, filter the technique effect of the noise signal outside amplifier operation band limits.
Those skilled in the art, at consideration specification and after putting into practice invention disclosed herein, will easily expect other embodiment of the present disclosure.The application is intended to contain any modification of the present disclosure, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present disclosure and comprised the undocumented common practise in the art of the disclosure or conventional techniques means.Specification and embodiment are only regarded as exemplary, and true scope of the present disclosure and spirit are pointed out by claim below.
Should be understood that, the disclosure is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.The scope of the present disclosure is only limited by appended claim.
Claims (11)
1. improve a device for radio frequency link receiving sensitivity, it is characterized in that, described device comprises: the signal receiving module, signal amplification module and the signal processing module that are connected successively;
Described signal receiving module receives wireless communication signals and is sent to described signal amplification module;
Described signal amplification module amplifies the described wireless communication signals received, and obtains the first signal, and described first signal is sent to described signal processing module;
Described signal processing module carries out demodulation to described first signal received, and obtains secondary signal.
2. device according to claim 1, is characterized in that,
Described signal amplification module comprises: a low noise amplifier, and the input of described low noise amplifier is connected with described signal receiving module, and the output of described low noise amplifier is connected with described signal processing module.
3. device according to claim 1, is characterized in that,
Described signal amplification module comprises: selector switch and at least two low noise amplifiers, the common port of described selector switch is connected with described signal receiving module, the input of each described low noise amplifier is connected with a selecting side of described selector switch, and the output of each described low noise amplifier is connected with an input of described signal processing module.
4. device according to claim 3, is characterized in that, non-overlapping copies between each self-corresponding working frequency range of described at least two low noise amplifiers.
5., according to the arbitrary described device of Claims 1-4, it is characterized in that,
Described signal receiving module is antenna;
Described signal processing module is receiver.
6. improve a method for radio frequency link receiving sensitivity, it is characterized in that, be applied to the arbitrary described device of claim 1 to 5, described device comprises the signal receiving module, signal amplification module and the signal processing module that are connected successively, and described method comprises:
Wireless communication signals is received by described signal receiving module;
The described wireless communication signals received by described signal receiving module is sent to described signal amplification module:
By described signal amplification module, described wireless communication signals is amplified, obtain the first signal;
Described first signal obtained by described signal amplification module is sent to described signal processing module;
By described signal processing module, demodulation is carried out to described first signal received, obtain secondary signal.
7. method according to claim 6, is characterized in that, described signal amplification module comprises a low noise amplifier;
Describedly by described signal amplification module, described wireless communication signals to be amplified, obtains the first signal, comprising:
By described low noise amplifier, described wireless communication signals is amplified, obtain described first signal.
8. method according to claim 6, is characterized in that, described signal amplification module comprises selector switch and at least two low noise amplifiers;
Describedly by described signal amplification module, described wireless communication signals to be amplified, obtains the first signal, comprising:
Control described selector switch described signal receiving module is connected with i-th low noise amplifier;
Judge whether successfully accessing mobile communication network;
When described mobile communications network cannot be accessed, make i=i+1, re-execute the step that described signal receiving module and i-th low noise amplifier carry out being connected by the described selector switch of described control;
When successfully accessing described mobile communications network, by described i-th low noise amplifier, described wireless communication signals being amplified, obtaining described first signal.
9. method according to claim 8, is characterized in that, described signal receiving module is connected with i-th low noise amplifier by the described selector switch of described control, comprising:
According to putting in order of the described low noise amplifier preset, control described selector switch and described signal receiving module is connected with i-th described low noise amplifier.
10., according to the arbitrary described method of claim 6 to 9, it is characterized in that, described by described signal receiving module reception wireless communication signals, comprising:
Wireless communication signals is received by antenna.
11., according to the arbitrary described method of claim 6 to 9, is characterized in that, describedly carry out demodulation by described signal processing module to described first signal, obtain secondary signal, comprising:
By receiver, demodulation is carried out to described first signal, obtain secondary signal.
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| CN106330213A (en) * | 2016-09-18 | 2017-01-11 | 深圳铂睿智恒科技有限公司 | Radio frequency device enhancing sensitivity |
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| CN103781085A (en) * | 2013-12-11 | 2014-05-07 | 北京理工大学 | Multi-frequency range TETRA digital cluster detection method and apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330248A (en) * | 2016-09-18 | 2017-01-11 | 深圳铂睿智恒科技有限公司 | Radio frequency system enhancing 2G/3G sensitivity |
| CN106330213A (en) * | 2016-09-18 | 2017-01-11 | 深圳铂睿智恒科技有限公司 | Radio frequency device enhancing sensitivity |
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