CN203965623U - A kind of wireless antenna based on GNSS - Google Patents
A kind of wireless antenna based on GNSS Download PDFInfo
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- CN203965623U CN203965623U CN201420345999.9U CN201420345999U CN203965623U CN 203965623 U CN203965623 U CN 203965623U CN 201420345999 U CN201420345999 U CN 201420345999U CN 203965623 U CN203965623 U CN 203965623U
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Abstract
The utility model discloses a kind of wireless antenna based on GNSS, comprise antenna body, merit subdivision, filtering and low noise amplification unit, filtering and regulon and radio-frequency front-end processing unit, also comprise related process module, wireless transport module, antenna body connects merit subdivision, merit subdivision connects filtering and low noise amplification unit, filtering and low noise amplification unit connect filtering and regulon, filtering and regulon connect radio-frequency front-end processing unit, radio-frequency front-end processing unit join dependency processing module, related process module connects wireless transport module.Adopt technique scheme to make a kind of easy to use, the wireless antenna based on GNSS that can remote control, makes the reception of radio frequency signal process separated with resolving of digital signal.Antenna can use with base band reception & disposal unit that digital signal is wireless to be connected, and with regard to dirigibility being provided to the staff under open air or hazardous environment, has increased security, has reduced the actual bodily harm to staff.
Description
Technical field
The utility model relates to handheld terminal field, particularly a kind of wireless antenna based on GNSS.
Background technology
Handheld terminal refers to the portable data processing terminal with following several specific characters: 1, have operating system.As WINDOWS, LINUX etc.; 2, internal memory, CPU, video card etc.; 3, screen and keyboard; 4, data transmission and processing ability; 5, self has battery, can move use.Handheld terminal is called again mobile data terminal, and the mobile data terminal based on GNSS has very important effect in DATA REASONING.Mobile data terminal all needs to be connected with antenna, and conventional antenna is all wired simulating signal antenna now, and antenna needs and mobile data terminal cable wired connection.Usually can run into the situation of a lot of inconveniences when operation out of doors, such as weather too hot time outdoor high-temperature service unfavorable to staff's health; Due to the restriction of antenna line length, often need to move everywhere with all equipment, there is heavy inflexible trouble; If in higher place, staff needs whole process more dangerous aloft.
Therefore need a kind of easy to use, the wireless antenna based on GNSS that can remote control.
Utility model content
In order to address the above problem, it is a kind of easy to use that the utility model provides, the wireless antenna based on GNSS that can remote control.
A kind of wireless antenna based on GNSS in the utility model, comprise antenna body, merit subdivision, filtering and low noise amplification unit, filtering and regulon and radio-frequency front-end processing unit, also comprise related process module, wireless transport module, described antenna body connects merit subdivision, described merit subdivision connects filtering and low noise amplification unit, described filtering and low noise amplification unit filtering and regulon, described filtering and regulon connect radio-frequency front-end processing unit, described radio-frequency front-end processing unit join dependency processing module, described related process module connects wireless transport module.
In such scheme, described related process module completes digital demodulation and related algorithm.
In such scheme, described wireless transport module is high-rate wireless transport module.
A kind of radio transmitting method, it is characterized in that, the signal that antenna body is collected enters filtering through merit subdivision and low noise amplification unit goes to carry out filtering and amplification, process the work that signal input radio frequency front-end processing unit later completes analog demodulator, afterwards data are delivered to the digital demodulation that related process module completes related algorithm, and be dealt into outside base band reception & disposal unit through wireless transport module.
In such scheme, described related process module carries out numeral, after pseudo-random sequence combination, signal is dealt into outside base band reception & disposal unit.
Advantage of the present utility model and beneficial effect are: the utility model provides a kind of easy to use, and the wireless antenna based on GNSS that can remote control makes the reception of radio frequency signal process separated with resolving of digital signal.Antenna can use with base band reception & disposal unit that digital signal is wireless to be connected, and with regard to dirigibility being provided to the staff under open air or hazardous environment, has increased security, has reduced the actual bodily harm to staff.High-level efficiency wireless transmission can guarantee transmission and the reception of data integrity.Antenna is not controlled by line length, convenient mobile.Digital antenna and base band reception & disposal unit can be wired, and also can be wireless, and can make full use of existing calculation process ability, and are not limited to the distance of distance, make operated from a distance and process and come true in real time.This antenna, when flexile processing mode is provided, can share the idle calculation process ability of client, so greatly reduce the cost that user obtains high precision position information.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
In figure: 1, antenna body 2, merit subdivision 3, filtering and low noise amplification unit
4, filtering and regulon 5, radio-frequency front-end processing unit 6, related process module
7, wireless transport module
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, the utility model is a kind of wireless antenna based on GNSS, comprise antenna body 1, merit subdivision 2, filtering and low noise amplification unit 3, filtering and regulon 4 and radio-frequency front-end processing unit 5, also comprise related process module 6, wireless transport module 7, antenna body 1 connects merit subdivision 2, merit subdivision 2 connects filtering and low noise amplification unit 3, filtering and low noise amplification unit 3 connect filtering and regulon 4, filtering and regulon 4 connect radio-frequency front-end processing unit 5, radio-frequency front-end processing unit 5 join dependency processing modules 6, related process module 6 connects wireless transport module 7.
Wherein, related process module 6 completes digital demodulation and related algorithm.Wireless transport module 7 is high-rate wireless transport module.
A kind of radio transmitting method, the signal that antenna body 1 is collected enters filtering through merit subdivision 2 and low noise amplification unit 3 goes to carry out filtering and amplification, process signal later and first by filtering and the rear input radio frequency front-end processing unit 5 of regulon 4, complete the work of analog demodulator, filtering and regulon 4 can well be realized jamproof function, afterwards data are delivered to the digital demodulation that related process module 6 completes related algorithm, related process module 6 carries out numeral through wireless transport module 7, to be dealt into outside base band reception & disposal unit after pseudo-random sequence combination.
In communication system, base band reception & disposal unit all needs to process with amplifying after filtering to the modulation signal receiving.The object of filtering is to eliminate out-of-band noise, and the object of amplification is that inband signaling is amplified to facilitate follow-up ADC sampling processing.In debugging, amplification filtering is in succession sequentially according to being:
1, when the signal out-of-band noise receiving is principal contradiction, noise amplitude is far longer than signal amplitude, needs first to carry out filtering, and then amplifies.Because suppose first signal to be amplified, the signal noise amplitude receiving is larger, and amplifier, by output saturation, causes signal further to be weakened, even if follow-up filtering is done good also nonsensically again.
2, the signal and the noise amplitude that receive are all very little.Informational needs for as far as possible many preservation signals first amplifies in this case, then filtering.Amplify and can not cause saturated output, preserved to the full extent original signal.Suppose that first filtering amplifies again, may introduce other weak interference at filtering and may make signal produce certain distortion, this is just equivalent to add noise simultaneously.This situation need to first be amplified processing.
Radio-frequency front-end processing unit 5 provides antenna diversity function, the signal that GNSS receives becomes digital signal after analog demodulator, but this digital signal was modulated by specific pseudo-random code, relevant resolving utilizes the auto-correlation energy of pseudo-random code maximum, the feature that simple crosscorrelation energy is very little, the digital signal from analog demodulator solves useful data message.
High-rate wireless transport module guarantees that data can utilize the digital signal after analog demodulator wireless technology to transmit accurately data and undistorted.If need also can be connected with wire antenna, there is wire antenna can improve transfer rate, signal is more stable.
Related process module is placed in antenna, and base band reception & disposal unit only need to complete base band and resolve process.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. the wireless antenna based on GNSS, comprise antenna body, merit subdivision, filtering and low noise amplification unit, filtering and regulon and radio-frequency front-end processing unit, it is characterized in that, also comprise related process module, wireless transport module, described antenna body connects merit subdivision, described merit subdivision connects filtering and low noise amplification unit, described filtering and low noise amplification unit connect filtering and regulon, described filtering and regulon connect radio-frequency front-end processing unit, described radio-frequency front-end processing unit join dependency processing module, described related process module connects wireless transport module.
2. a kind of wireless antenna based on GNSS according to claim 1, is characterized in that, described related process module completes digital demodulation and related algorithm.
3. a kind of wireless antenna based on GNSS according to claim 1, is characterized in that, described wireless transport module is high-rate wireless transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345999.9U CN203965623U (en) | 2014-06-25 | 2014-06-25 | A kind of wireless antenna based on GNSS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345999.9U CN203965623U (en) | 2014-06-25 | 2014-06-25 | A kind of wireless antenna based on GNSS |
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| CN203965623U true CN203965623U (en) | 2014-11-26 |
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| CN201420345999.9U Expired - Lifetime CN203965623U (en) | 2014-06-25 | 2014-06-25 | A kind of wireless antenna based on GNSS |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280742A (en) * | 2014-06-25 | 2015-01-14 | 上海航微信息科技有限公司 | GNSS-based wireless antenna |
-
2014
- 2014-06-25 CN CN201420345999.9U patent/CN203965623U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280742A (en) * | 2014-06-25 | 2015-01-14 | 上海航微信息科技有限公司 | GNSS-based wireless antenna |
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Granted publication date: 20141126 |