CN1900735A - Hand held direction finding device with direction finding function and direction finding method - Google Patents
Hand held direction finding device with direction finding function and direction finding method Download PDFInfo
- Publication number
- CN1900735A CN1900735A CNA2006100269526A CN200610026952A CN1900735A CN 1900735 A CN1900735 A CN 1900735A CN A2006100269526 A CNA2006100269526 A CN A2006100269526A CN 200610026952 A CN200610026952 A CN 200610026952A CN 1900735 A CN1900735 A CN 1900735A
- Authority
- CN
- China
- Prior art keywords
- signal
- finding
- module
- antenna
- information
- 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
Images
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The direction finding equipment includes VHF/UHF beam-antenna and direction finding receiver. The said direction finding receiver is as a hand held type direction finding receiver composed of module of switching radio frequency signal, processing module for radiation signal in strong current, tuning receiving unit, digital signal processor, system control unit, process unit for syncretizing information, GPS antenna/GPS receiving module, electron compass, and power supply management module. Syncretizing GPS positioning information and direction information of electron compass, the disclosed direction finding equipment possesses unique direction finding and locating functions. Features are: light weight, low cost, portable and easy of operation.
Description
Technical field
The present invention relates to radio direction finding equipment and direction finding localization method, particularly a kind of radio-signal direction finding positioning equipment and direction finding localization method based on GPS locating information and electronic compass directional information.
Background technology
The radio signal radiation is directive, determines that with the radiotelegraphy means process of radio signal radiation source direction is called radio direction finding (RDF); Radio direction-finding system utilizes technological means to determine that the process of wireless signal radiation source positions is called radiolocation.
Continuous progress along with the communication and the information processing technology, the new technology of radio direction finding (RDF) location continues to bring out, as: amplitude-comprised direction-finding technology, interferometer direction finding technology, and the Estimation of Spatial Spectrum direction finding technology that gets up of development in recent years or the like, all obtain widely and use in the direction finding field.More direction-finding system based on these technology adopts the cross bearing of a plurality of fixedly direction finding site or utilizes aerial array to determine the position of radiation source.In the system that adopts the cross bearing of a plurality of fixedly direction finding site, each direction finding site all has and overlaps independently direction-finding system, comprising: large-scale DF antenna system, receiving system, signal processing system, control system, connected network communication system, information display system, power supply and backup power system or the like.Another kind of is vehicle-mounted direction-finding system, the direction-finder antenna array that this system mostly adopts regular polygon to distribute, and adopt the phase-interferometer direction finding technology.The phase-interferometer direction finding is to utilize the phase information of electric wave to measure the radiation source direction.Fixedly direction finding site direction-finding system overall performance is relatively good, but owing to involve great expense, quantity is also quite limited, is suitable for disposing in the key area, is mainly used in the macroscopic view monitoring of electromagnetic radiation environment; Adopt the vehicle-mounted direction-finding system of phase-interferometer direction finding technology, the direction finding performance is good, maneuverability is stronger, but it is same owing to cost an arm and a leg, equipment quantity is considerably less, and the monitoring point just will inevitably influence the covering performance of monitoring system less, on the one hand, above-mentioned direction-finding system can only propose a possible regional extent at radiation target usually, for example: for direction finding precision is 3 ° direction-finding system, is positioned at the outer radiation source of 5km, will be measured as the border circular areas of the nearly 300m of diameter.On the other hand, because the existence of monitoring blind area, some radiation sources can't be found at all.Therefore, adopt portable direction-finding system to monitor radiation source and just become a kind of crucial means.
A large amount of at present portable direction-finding systems of using are usually by direction-finder antenna, VHF/UHF frequency range receiver, compositions such as frequency spectrograph or electrometer of field strength and power-supply unit.These equipment are more valuable on the one hand, and it is larger on the other hand, in fact neither flexible " portable " system.Still more, the use of these instrument and equipments needs special operative knowledge, will seek out desirable direction finding effect simultaneously, also requires operating personnel to possess good wireless electricity professional knowledge and abundant radio direction finding (RDF) experience.These require all to satisfy than difficult in a lot of occasions.
Summary of the invention
A kind of hand-held direction-finding equipment and direction finding localization method with positioning function of providing at above-mentioned application demand is provided.Equipment provided by the invention is lighter and handier, and cost is low, and is easy to use, is easy to carry, and do not require that operating personnel possess professional knowledge, can obtain direction finding locating information completely under the simple operations step.
In order to achieve the above object, the present invention adopts following technical proposals:
A kind of hand-held direction-finding equipment with positioning function is formed with direction-finding receiver by VHF/UHF is directed wireless, it is characterized in that:
A. described VHF/UHF directional antenna is made up of several pairs of direction-finder antennas that are operated in different frequency range;
B. described direction-finding receiver is the hand-held direction-finding receiver, is made up of a radiofrequency signal handover module (A), a strong electromagnetic radiation signal processing module (B), a tuning receiving element (C), a digital signal processor (D), a system control unit (E), an information fusion processing unit (F), gps antenna/GPS receiver module (G), an electronic compass (H) and a power management module (I);
From the next signal of VHF/UHF directional antenna, the radiofrequency signal of switching through radiofrequency signal handover module (A) is sent to strong electromagnetic radiation processing module (B) or delivers to tuning receiving element (C), and the signal of strong electromagnetic radiation processing module (B) and tuning receiving element (C) output carries out the A/D sampling respectively in digital signal processor (D); Its signal of handling through strong electromagnetic radiation processing module (B) is done base band low speed A/D sampling, and is to owe sampling as the broadband through the intermediate-freuqncy signal that tuning receiving element (C) is handled; Signal after the A/D sampling, when in digital signal processor (D), doing/the frequency domain processing, result is delivered to system control unit (E) and information fusion processing unit (F) by control bus; Gps antenna/GPS receiver module (G) comprises GPS receiving antenna (G1) and GPS receiver (G2), and GPS receiver (G2) is delivered to information fusion processing unit (F) with satnav information; Electronic compass (H) is also delivered to information fusion processing unit (F) to the antenna direction information that senses; In the information fusion processing unit, the various information of input as calculated and the coordinate position of optimization aim; Direction finding locating information the most at last shows in display, simultaneously by the audio prompt mode, and auxiliary direction finding operation; All functions module and unit be co-ordination under the control of system control unit (F) all, and provides working power by power management module (I).
Above-mentioned hand-held direction-finding receiver is the pistol bodily form, and described power management module (I) and battery chamber (8) are set in its pistol body handle, and on its front side wall power supply and measurement function on ﹠ off switch (7) is installed; Described radiofrequency signal handover module (A), strong electromagnetic radiation signal processing module (B), tuning receiving element (C), digital signal processor (D) and system control unit (E) are installed at the middle part of pistol body; Described gps antenna/GPS receiver module (G) and electronic compass device (H) are installed in the rear portion that is the rifle body, and display window (4), parameter editing key (6) and audio frequency output earphone jack (5) are installed, antenna mounting interface (1) and rf input interface (2) are arranged in the front portion of pistol body.
The rear portion of above-mentioned pistol body separates with the middle part of pistol body, and be hinged by rotary joint device (3), make the pistol body rear portion can 90 ° of rotations, with polarised direction, the gps antenna directional diagram that solves direction-finder antenna point to, the sensing of electronic compass is average and display window positions between contradiction.
Above-mentioned radiofrequency signal switch unit (A) is made up of four switch SW 1, SW2, SW3, SW4, a low-pass filter (J) and an amplifier (K), is fed to strong electromagnetic radiation signal processing module (B) from the radiofrequency signal RFin of directional antenna by SW1; When system control unit (E) decision signal is too weak, just SW1 is disconnected and the SW2 connection, the RF signal directly is fed to tuning receiving element (C), this moment if system control unit (E) still decision signal too a little less than, then SW1 and SW2 disconnect, and with SW3 and SW4 closure, the RF signal is fed to tuning receiving element (C) through low-pass filter (J) and amplifier (K).
Above-mentioned strong electromagnetic radiation processing module (B) is the coupling attenuation device (B1) of a feed-in direction-finder antenna received signal, the signal of its output after decay is after a signal level detecter (B2) effectively detects, amplify output through an output amplifier (B3) again, thereby make the hand-held direction-finding receiver obtain necessary signal level value.
Above-mentioned tuning receiving element (C) selects module (C1) to connect a mixing receiving element (C2) formation by an electronic tuning frequency, RF signal from radiofrequency signal switch unit (A) is after the electronic tuning frequency is selected module (C1) and mixing receiving element (C2), the RF signal is intermediate frequency (IF) signal by frequency conversion, is sent to digital signal processor (D) subsequently.
Above-mentioned digital signal processor (D) carries out digitizing respectively to base band and intermediate-freuqncy signal from strong electromagnetic radiation signal processing module (B) and tuning receiving element (C), and when further doing/frequency-domain analysis handles, and extracts to refer to it is the level information of signal on the frequency; The output signal of described GPS receiver (G2) is used to identify the residing geographic position of receiver, and the installation site of described gps antenna (G1) must guarantee that its directional diagram is over against sky.
Above-mentioned electronic compass (H) is the sensor assembly that an energy perception angle changes, and is used to identify the angle between antenna direction and the north geographic pole, and sensor plane and surface level basically identical must be guaranteed in its installation site when the equipment of use; Described information fusion processing unit (F) is to carrying out overall treatment from the information of digital signal processor (D), GPS receiver (G2) and electronic compass (H), and obtains the position coordinates in echo signal source.
A kind of direction finding localization method, adopt above-mentioned hand-held direction-finding equipment to carry out direction finding and location with positioning function, it is characterized in that merging the locating information of GPS and the directional information of electronic compass, thereby realize direction finding and location to the echo signal source, concrete job step is as follows:
(1) by the VHF/UHF antenna antenna electric wave of corresponding frequency band is converted to electrical signals and gives radiofrequency signal handover module (A);
(2) size of system control unit (E) basis signal level, control radiofrequency signal handover module (A) is fed to strong electromagnetic radiation signal processing module (B) or tuning receiving element (C) with signal: when direction-finding receiver is in the strong electromagnetic radiation environment, radiofrequency signal handover module (A) switches to strong electromagnetic radiation signal processing module (B) with signal, after coupling attenuation, signal level is fallen in the linear sensing range of detecting device, and this moment, signal detector can effectively extract and output signal strength information; When signal level weakened, the radio frequency switch unit was fed to tuning receiving element (C) with signal, after tuning filtering, frequency conversion reception, intermediate-freuqncy signal digitizing by digital signal processor (D) extract signal the time/the frequency domain character parameter;
(3) directional information that obtains together with GPS receiver and the positioning signal that (G2) obtains and electronic compass (H) of above-mentioned characteristic parameter is delivered to signal fused processing unit (F) and is carried out information fusion and handle, and obtains the coordinate position of radiation source;
(4) information fusion processing unit (F) result offers the user with video or audio frequency mode.
The method that above-mentioned information fusion processing unit (F) carries out the information fusion processing is as follows:
According to Chosen Point O coordinate x
0, y
0The signal level value Voi of following record and corresponding deflection θ oi thereof obtain and obtain level maximal value V
0maxThe time pairing θ
0max, i=o, 1 ... N, V
0maxSolution procedure to consider the distribution characteristics of Voi;
If the coordinate of radiation source is
Then have
Utilize at coordinate x equally
1, y
1The deflection θ that tries to achieve down
1max,
Separate (1), (2) formula Simultaneous Equations, try to achieve the coordinate in target emanation source
For at different coordinate xj, yj, j=0,1 ... M tries to achieve x
Tj, y
Tj
Adopt optimal estimation algorithm to try to achieve optimum x
Topt, y
Topt
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art:
Primary characteristics of the present invention are: it is a portable direction-finding equipment truly.Because the directional information of GPS location and electronic compass has been merged in the present invention, thereby makes direction-finding equipment have unique automatic direction finding and positioning function.This is the key character of this implementation difference in other direction-finding system, and direction-finding equipment of the present invention does not also require that operating personnel possess professional knowledge, and it can obtain direction finding locating information completely under the shirtsleeve operation step.
Second characteristic of the present invention are to have the strong electromagnetic radiation measuring ability.Direction-finding equipment commonly used is when direction-finder antenna approaches the radiation signal source, and owing to the influence of strong electromagnetic radiation, the input amplifier of receiver is in degree of depth state of saturation, makes the direction-finding system can't operate as normal.The present invention adopts the strong electromagnetic radiation signal processing technology, can still have the target detection function in the 3m near 50W radiation source emitting antenna.
Description of drawings
Fig. 1 is the equipment appearance figure of one embodiment of the invention.
Fig. 2 is the physical construction synoptic diagram of the hand-held direction-finding receiver among Fig. 1.
Fig. 3 is the circuitry theory diagram of Fig. 1 example.
Fig. 4 is radiofrequency signal switch unit circuit theory diagrams.
Fig. 5 is a strong electromagnetic radiation signal processing circuit unit schematic diagram.
Fig. 6 is a tuned receiver principle of work block diagram.
Fig. 7 is single radiation source direction finding location algorithm principle schematic.
Fig. 8 be two with frequency radiation source direction finding location algorithm principle schematic.
Fig. 9 is that direction finding message shows main interface synoptic diagram.
More than label declaration among each figure: relate to the part that functional module (unit) describes among the figure and adopt English alphabet (as A, B etc.) mark; The part that relates to device structure, form is with the numeral of zone circle (as 1., 2. wait) mark; The inner building block of functional module (unit) adds numeral (as A1, B1 etc.) mark with English alphabet.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is illustrated:
Fig. 1 is the outside drawing of this hand-held direction finding positioning equipment.As we can see from the figure, can be divided into two parts on the device external structure of the present invention: VHF/UHF directional antenna and hand-held direction-finding receiver.Wherein, the VHF/UHF antenna is made up of several pairs of direction-finder antennas that are operated in different frequency range.
Fig. 2 has shown the physical construction of hand-held direction-finding receiver.What sign A to I indicated respectively is the material object distribution of each functional module (unit), and 1. sign is the function or the structure member of equipment to what 8. indicate.Described hand-held direction-finding receiver is the pistol bodily form, in its pistol body handle described power management module I and battery chamber 8 is set, and on its front side wall power supply and measurement function on ﹠ off switch 7 is installed; Described radiofrequency signal handover module A, strong electromagnetic radiation signal processing module B, tuning receiving element C, digital signal processor D and system control unit E are installed at the middle part of pistol body; Described gps antenna/GPS receiver module G and electronic compass device H are installed in the rear portion that is the rifle body, and display window 4, parameter editing key 6 and audio frequency output earphone jack 5 are installed, and antenna mounting interface 1 and rf input interface 2 are arranged in the front portion of pistol body.
Fig. 3 illustrates the circuit theory of this hand-held direction finding positioning equipment, wherein 1 is the VHF/UHF directional receiving antenna, A is the radio frequency handover module, the radiofrequency signal of switching through A is sent to strong electromagnetic radiation processing module B or delivers to tuning receiving element C, and the signal of B and C output carries out the A/D sampling respectively in digital signal processing module D.It is pointed out that through the signal of B processing and do base band low speed A/D sampling that the intermediate-freuqncy signal of handling through C is to owe sampling as the broadband.Signal after the A/D sampling, when in digital signal processor D, doing/the frequency domain processing, result is delivered to system control unit E and information fusion processing unit F by control bus.G1 is the GPS receiving antenna, and G2 is the GPS receiver, and the GPS receiver is delivered to unit F with satnav information; Same electronic compass H also delivers to information fusion processing unit F to the antenna direction information that senses.In F, various information all is used to calculate and the coordinate position of optimization aim, and direction finding locating information the most at last shows in display, and simultaneously by the audio prompt mode, auxiliary direction finding is operated.All functions module and unit all are co-ordinations under the control of system control unit E.
Fig. 4 illustrates above-mentioned radiofrequency signal handover module A fundamental diagram, and SW1 is a normally closed switch, is fed to strong electromagnetic radiation signal processing module B from the radiofrequency signal RFin of directional antenna by SW1; When system control unit E decision signal is too weak, just SW1 is disconnected and SW2 is connected, the RF signal directly is fed to tuning receiving element C, if this moment system control unit E still decision signal too a little less than, then SW1 and SW2 disconnect, and with SW3 and SW4 closure, the RF signal is fed to tuning receiving element C again behind low-pass filter J and amplifier K.
Fig. 5 has shown the basic function of above-mentioned strong electromagnetic radiation signal processing module B.Because this moment, the radiation signal level was higher, at first will decay to the RF signal before carrying out level detection.In present embodiment design, the damping capacity of coupling attenuation device B1 is 30dB, the detection level range of signal level detecter B2 is-60～-10dBm, therefore, the processing level range of strong electromagnetic radiation signal processing module B is-30～+ 20dBm.
Fig. 6 illustrates the ultimate principle of above-mentioned tuning receiving element C.C1 is the electronic tuning filter unit among the figure, and in the present embodiment, whole frequency is divided into three sections and comes tuning.C2 is the frequency conversion receiving element, and corresponding to three sections tuned filter outputs, frequency conversion receives and also is divided into three sections, and three local oscillation signals are produced by the digital phase-locked loop frequency compositor.After frequency conversion received, the RF signal was intermediate frequency (IF) signal by frequency conversion, and this intermediate-freuqncy signal is sent to digital signal processor D subsequently.
Fig. 7 illustrates the direction finding positioning principle of single radiation source.O (x among the figure
0, y
0) the point deflection of measuring radiation source is θ
0max, P (x
1, y
1) the point deflection of measuring radiation source is θ
1max, can determine the coordinate (X of target source Target by these two coordinates and deflection thereof
t, Y
t).
What Fig. 8 showed is two direction finding positioning principles with frequency radiation source.O (x among the figure
0, y
0) deflection that records corresponding to two radiation sources of point is respectively θ
0max1And θ
0max2, P (x
1, y
1) deflection that records corresponding to two radiation sources of point is respectively θ
1max1And θ
1max2, can determine two target source Targ et1, Targ et2 by these two coordinates and deflection thereof) coordinate position (X
t 1, Y
t 1), (X
t 2, Y
t 2).Similarly, we can determine more than three with frequency radiation source ground position coordinates.
The direction finding message that Fig. 9 provides present embodiment shows main interface.
Fig. 9 is an information demonstration completely after the work of direction finding location is finished.The left side of Fig. 9 has identified antenna direction, position, the positive north is pointed to and the target emanation source between the position relation, also marked the distance that the gauger is left in the target emanation source simultaneously.The right side of Fig. 9 has shown the relevant information of measured signal.
Claims (10)
1. the hand-held direction-finding equipment with positioning function is formed with direction-finding receiver by VHF/UHF is directed wireless, it is characterized in that:
A. described VHF/UHF directional antenna is made up of several pairs of direction-finder antennas that are operated in different frequency range;
B. described direction-finding receiver is the hand-held direction-finding receiver, is made up of a radiofrequency signal handover module (A), a strong electromagnetic radiation signal processing module (B), a tuning receiving element (C), a digital signal processor (D), a system control unit (E), an information fusion processing unit (F), gps antenna/GPS receiver module (G), an electronic compass (H) and a power management module (I);
From the next signal of VHF/UHF directional antenna, the radiofrequency signal of switching through radiofrequency signal handover module (A) is sent to strong electromagnetic radiation processing module (B) or delivers to tuning receiving element (C), and the signal of strong electromagnetic radiation processing module (B) and tuning receiving element (C) output carries out the A/D sampling respectively in digital signal processor (D); Its signal of handling through strong electromagnetic radiation processing module (B) is done base band low speed A/D sampling, and is to owe sampling as the broadband through the intermediate-freuqncy signal that tuning receiving element (C) is handled; Signal after the A/D sampling, when in digital signal processor (D), doing/the frequency domain processing, result is delivered to system control unit (E) and information fusion processing unit (F) by control bus; Gps antenna/GPS receiver module (G) comprises GPS receiving antenna (G1) and GPS receiver (G2), and GPS receiver (G2) is delivered to information fusion processing unit (F) with satnav information; Electronic compass (H) is also delivered to information fusion processing unit (F) to the antenna direction information that senses; In the information fusion processing unit, the various information of input as calculated and the coordinate position of optimization aim; Direction finding locating information the most at last shows in display, simultaneously by the audio prompt mode, and auxiliary direction finding operation; All functions module and unit be co-ordination under the control of system control unit (F) all, and provides working power by power management module (I).
2. the hand-held direction-finding equipment with positioning function according to claim 1, it is characterized in that described hand-held direction-finding receiver is the pistol bodily form, described power management module (I) and battery chamber (8) are set in its pistol body handle, and on its front side wall, power supply and measurement function on ﹠ off switch (7) are installed; Described radiofrequency signal handover module (A), strong electromagnetic radiation signal processing module (B), tuning receiving element (C), digital signal processor (D) and system control unit (E) are installed at the middle part of pistol body; Described gps antenna/GPS receiver module (G) and electronic compass device (H) are installed in the rear portion that is the rifle body, and display window (4), parameter editing key (6) and audio frequency output earphone jack (5) are installed, antenna mounting interface (1) and rf input interface (2) are arranged in the front portion of pistol body.
3. the hand-held direction-finding equipment with positioning function according to claim 2, the rear portion that it is characterized in that described pistol body separates with the middle part of pistol body, and be hinged by rotary joint device (3), make the pistol body rear portion can 90 ° of rotations, with polarised direction, the gps antenna directional diagram that solves direction-finder antenna point to, the sensing of electronic compass is average and display window positions between contradiction.
4. the hand-held direction-finding equipment with positioning function according to claim 1, it is characterized in that described radiofrequency signal switch unit (A) is made up of four switch SW 1, SW2, SW3, SW4, a low-pass filter (J) and an amplifier (K), be fed to strong electromagnetic radiation signal processing module (B) by SW1 from the radiofrequency signal RFin of directional antenna; When system control unit (E) decision signal is too weak, just SW1 is disconnected and the SW2 connection, the RF signal directly is fed to tuning receiving element (C), this moment if system control unit (E) still decision signal too a little less than, then SW1 and SW2 disconnect, and with SW3 and SW4 closure, the RF signal is fed to tuning receiving element (C) through low-pass filter (J) and amplifier (K).
5. the hand-held direction-finding equipment with positioning function according to claim 1, it is characterized in that described strong electromagnetic radiation processing module (B) is the coupling attenuation device (B1) of a feed-in direction-finder antenna received signal, the signal of its output after decay is after a signal level detecter (B2) effectively detects, amplify output through an output amplifier (B3) again, thereby make the hand-held direction-finding receiver obtain necessary signal level value.
6. the hand-held direction-finding equipment with positioning function according to claim 1, it is characterized in that described tuning receiving element (C) connects a mixing receiving element (C2) by an electronic tuning frequency selection module (C1) and constitutes, RF signal from radiofrequency signal switch unit (A) is after the electronic tuning frequency is selected module (C1) and mixing receiving element (C2), the RF signal is intermediate frequency (IF) signal by frequency conversion, is sent to digital signal processor (D) subsequently.
7. the hand-held direction-finding equipment with positioning function according to claim 1, it is characterized in that described digital signal processor (D) carries out digitizing respectively to base band and intermediate-freuqncy signal from strong electromagnetic radiation signal processing module (B) and tuning receiving element (C), and when further doing/frequency-domain analysis handles, and extracts to refer to it is the level information of signal on the frequency; The output signal of described GPS receiver (G2) is used to identify the residing geographic position of receiver, and the installation site of described gps antenna (G1) must guarantee that its directional diagram is over against sky.
8. the hand-held direction-finding equipment with positioning function according to claim 1, it is characterized in that described electronic compass (H) is the sensor assembly that an energy perception angle changes, be used to identify the angle between antenna direction and the north geographic pole, sensor plane and surface level basically identical must be guaranteed in its installation site when the equipment of use; Described information fusion processing unit (F) is to carrying out overall treatment from the information of digital signal processor (D), GPS receiver (G2) and electronic compass (H), and obtains the position coordinates in echo signal source.
9. direction finding localization method, adopt the described hand-held direction-finding equipment of claim 1 to carry out direction finding and location with positioning function, it is characterized in that merging the locating information of GPS and the directional information of electronic compass, thereby realize direction finding and location to the echo signal source, concrete job step is as follows:
A. by the VHF/UHF antenna antenna electric wave of corresponding frequency band is converted to electrical signals and gives radiofrequency signal handover module (A);
B. the size of system control unit (E) basis signal level, control radiofrequency signal handover module (A) is fed to strong electromagnetic radiation signal processing module (B) or tuning receiving element (C) with signal: when direction-finding receiver is in the strong electromagnetic radiation environment, radiofrequency signal handover module (A) switches to strong electromagnetic radiation signal processing module (B) with signal, after coupling attenuation, signal level is fallen in the linear sensing range of detecting device, and this moment, signal detector can effectively extract and output signal strength information; When signal level weakened, the radio frequency switch unit was fed to tuning receiving element (C) with signal, after tuning filtering, frequency conversion reception, intermediate-freuqncy signal digitizing by digital signal processor (D) extract signal the time/the frequency domain character parameter;
C. above-mentioned characteristic parameter is delivered to signal fused processing unit (F) together with the directional information of GPS receiver and positioning signal that (G2) obtains and electronic compass (H) acquisition and is carried out the information fusion processing, obtains the coordinate position of radiation source;
D. information fusion processing unit (F) result offers the user with video or audio frequency mode.
10. direction finding localization method according to claim 9, it is as follows to it is characterized in that described information fusion processing unit (F) carries out the method that information fusion handles:
According to Chosen Point O coordinate x
0, y
0The signal level value Voi of following record and corresponding deflection θ oi thereof obtain and obtain level maximal value V
0maxThe time pairing θ
0max, i=o, 1 ... N, V
0maxSolution procedure to consider the distribution characteristics of Voi;
If the coordinate of radiation source is
Then have
Utilize at coordinate x equally
1, y
1The deflection θ that tries to achieve down
1max,
Separate (1), (2) formula Simultaneous Equations, try to achieve the coordinate in target emanation source
For at different coordinate xj, yj, j=0,1 ... M, try to achieve x
Tj, y
Tj
Adopt optimal estimation algorithm to try to achieve optimum x
Topt, y
Topt
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610026952A CN100593730C (en) | 2006-05-26 | 2006-05-26 | Hand held direction finding device with direction finding function and direction finding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610026952A CN100593730C (en) | 2006-05-26 | 2006-05-26 | Hand held direction finding device with direction finding function and direction finding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1900735A true CN1900735A (en) | 2007-01-24 |
| CN100593730C CN100593730C (en) | 2010-03-10 |
Family
ID=37656660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610026952A Expired - Fee Related CN100593730C (en) | 2006-05-26 | 2006-05-26 | Hand held direction finding device with direction finding function and direction finding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100593730C (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895352A (en) * | 2010-06-24 | 2010-11-24 | 南京天之谱科技有限公司 | Single-soldier backpack type radio monitoring direction-finding system |
| CN102361172A (en) * | 2011-09-13 | 2012-02-22 | 上海无线电设备研究所 | Antenna device used in airborne search engine |
| CN102411136A (en) * | 2011-08-09 | 2012-04-11 | 电子科技大学 | Phase interferometer direction finding method for ambiguity resolution by extension baselines |
| WO2012048452A1 (en) * | 2010-10-12 | 2012-04-19 | 成都点阵科技有限公司 | Portable integrated radio monitoring direction finding host machine |
| CN103067106A (en) * | 2012-12-31 | 2013-04-24 | 成都点阵科技有限公司 | Radio concealment monitoring method and portable radio monitoring system |
| CN103900543A (en) * | 2014-04-01 | 2014-07-02 | 成都航天通信设备有限责任公司 | Radio compass |
| CN104111441A (en) * | 2014-07-29 | 2014-10-22 | 北京机械设备研究所 | Field missile searching device |
| CN104218964A (en) * | 2014-09-04 | 2014-12-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and Wi-Fi (wireless fidelity) antenna control method |
| CN104748622A (en) * | 2015-04-23 | 2015-07-01 | 刘洋 | Digital reference transmission direction guide device |
| CN105024768A (en) * | 2015-08-18 | 2015-11-04 | 成都九华圆通科技发展有限公司 | Hand-held digital monitoring direction-finding system |
| CN105141382A (en) * | 2015-08-18 | 2015-12-09 | 成都九华圆通科技发展有限公司 | Handheld digital monitoring direction-finding equipment |
| CN105790858A (en) * | 2016-05-18 | 2016-07-20 | 成都福兰特电子技术股份有限公司 | Movable wireless monitoring device |
| CN105785138A (en) * | 2016-05-12 | 2016-07-20 | 北京森馥科技股份有限公司 | Frequency-selective electromagnetic radiation monitor |
| CN106932753A (en) * | 2017-03-14 | 2017-07-07 | 湖南雷神电子科技有限公司 | Anti- unmanned plane passive detection and direction detecting positioning system |
| CN107302405A (en) * | 2017-06-12 | 2017-10-27 | 上海虹安信息科技有限公司 | One kind is directed to Wireless Multi-Channel signal detection indicator device |
| CN107765211A (en) * | 2017-10-18 | 2018-03-06 | 国家新闻出版广电总局广播科学研究院 | A kind of detecting system to failing to understand radio and television intrusion signal |
| CN107831517A (en) * | 2017-10-18 | 2018-03-23 | 国家新闻出版广电总局广播科学研究院 | Combined positioning method to failing to understand radio and television intrusion signal multi-point cooperative direction finding |
| CN107966675A (en) * | 2017-11-23 | 2018-04-27 | 成都中星世通电子科技有限公司 | A kind of single mobile radio direction finding technology based on multiple perception |
| CN112415471A (en) * | 2020-12-11 | 2021-02-26 | 成都大公博创信息技术有限公司 | Single-station mobile direction finding positioning method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2246041B (en) * | 1990-07-10 | 1994-11-09 | Gec Ferranti Defence Syst | A radio direction finding system |
| CN1032450C (en) * | 1991-04-09 | 1996-07-31 | 俞惟铨 | Vehicle carrying radio monitor and goniometry system |
| FI105596B (en) * | 1996-05-27 | 2000-09-15 | Nokia Networks Oy | A method for determining the location of a mobile station |
| CH691337A5 (en) * | 1996-06-10 | 2001-06-29 | Asulab Sa | Portable precision watch with additional functions |
| CN1063267C (en) * | 1997-10-15 | 2001-03-14 | 电子工业部第五十四研究所 | Common-frequency multi-signal direction-finding and intercept receiving method and device thereof |
| US6366856B1 (en) * | 2000-11-21 | 2002-04-02 | Qualcomm Incorporated | Method and apparatus for orienting a map display in a mobile or portable device |
| US6674401B2 (en) * | 2002-02-19 | 2004-01-06 | Eride, Inc. | High sensitivity GPS receiver and reception |
| GB0300352D0 (en) * | 2003-01-08 | 2003-02-05 | Secr Defence | Radio signal direction finder |
-
2006
- 2006-05-26 CN CN200610026952A patent/CN100593730C/en not_active Expired - Fee Related
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895352A (en) * | 2010-06-24 | 2010-11-24 | 南京天之谱科技有限公司 | Single-soldier backpack type radio monitoring direction-finding system |
| CN101895352B (en) * | 2010-06-24 | 2013-04-17 | 南京天之谱科技有限公司 | Single-soldier backpack type radio monitoring direction-finding system |
| WO2012048452A1 (en) * | 2010-10-12 | 2012-04-19 | 成都点阵科技有限公司 | Portable integrated radio monitoring direction finding host machine |
| CN102411136A (en) * | 2011-08-09 | 2012-04-11 | 电子科技大学 | Phase interferometer direction finding method for ambiguity resolution by extension baselines |
| CN102411136B (en) * | 2011-08-09 | 2013-05-08 | 电子科技大学 | Phase interferometer direction finding method for ambiguity resolution by extension baselines |
| CN102361172A (en) * | 2011-09-13 | 2012-02-22 | 上海无线电设备研究所 | Antenna device used in airborne search engine |
| CN102361172B (en) * | 2011-09-13 | 2013-12-04 | 上海无线电设备研究所 | Antenna device used in airborne search engine |
| CN103067106A (en) * | 2012-12-31 | 2013-04-24 | 成都点阵科技有限公司 | Radio concealment monitoring method and portable radio monitoring system |
| CN103067106B (en) * | 2012-12-31 | 2015-06-03 | 成都点阵科技有限公司 | Radio concealment monitoring method and portable radio monitoring system |
| CN103900543A (en) * | 2014-04-01 | 2014-07-02 | 成都航天通信设备有限责任公司 | Radio compass |
| CN104111441A (en) * | 2014-07-29 | 2014-10-22 | 北京机械设备研究所 | Field missile searching device |
| CN104218964A (en) * | 2014-09-04 | 2014-12-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal and Wi-Fi (wireless fidelity) antenna control method |
| CN104748622A (en) * | 2015-04-23 | 2015-07-01 | 刘洋 | Digital reference transmission direction guide device |
| CN104748622B (en) * | 2015-04-23 | 2016-11-30 | 南安市永腾技术咨询有限公司 | A kind of digital principal direction of fire guide |
| CN105024768A (en) * | 2015-08-18 | 2015-11-04 | 成都九华圆通科技发展有限公司 | Hand-held digital monitoring direction-finding system |
| CN105141382A (en) * | 2015-08-18 | 2015-12-09 | 成都九华圆通科技发展有限公司 | Handheld digital monitoring direction-finding equipment |
| CN105785138A (en) * | 2016-05-12 | 2016-07-20 | 北京森馥科技股份有限公司 | Frequency-selective electromagnetic radiation monitor |
| CN105790858A (en) * | 2016-05-18 | 2016-07-20 | 成都福兰特电子技术股份有限公司 | Movable wireless monitoring device |
| CN106932753A (en) * | 2017-03-14 | 2017-07-07 | 湖南雷神电子科技有限公司 | Anti- unmanned plane passive detection and direction detecting positioning system |
| CN107302405A (en) * | 2017-06-12 | 2017-10-27 | 上海虹安信息科技有限公司 | One kind is directed to Wireless Multi-Channel signal detection indicator device |
| CN107765211A (en) * | 2017-10-18 | 2018-03-06 | 国家新闻出版广电总局广播科学研究院 | A kind of detecting system to failing to understand radio and television intrusion signal |
| CN107831517A (en) * | 2017-10-18 | 2018-03-23 | 国家新闻出版广电总局广播科学研究院 | Combined positioning method to failing to understand radio and television intrusion signal multi-point cooperative direction finding |
| CN107831517B (en) * | 2017-10-18 | 2021-02-09 | 国家新闻出版广电总局广播科学研究院 | Combined positioning method for multipoint collaborative direction finding of unknown broadcast television intrusion signals |
| CN107765211B (en) * | 2017-10-18 | 2021-05-28 | 国家新闻出版广电总局广播科学研究院 | System for detecting intrusion signal of unknown broadcast television |
| CN107966675A (en) * | 2017-11-23 | 2018-04-27 | 成都中星世通电子科技有限公司 | A kind of single mobile radio direction finding technology based on multiple perception |
| CN112415471A (en) * | 2020-12-11 | 2021-02-26 | 成都大公博创信息技术有限公司 | Single-station mobile direction finding positioning method |
| CN112415471B (en) * | 2020-12-11 | 2023-10-31 | 成都大公博创信息技术有限公司 | Single-station mobile direction-finding positioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100593730C (en) | 2010-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1900735A (en) | Hand held direction finding device with direction finding function and direction finding method | |
| CN108226852B (en) | Unmanned aerial vehicle operator positioning system and method based on aerial radio monitoring platform | |
| CA2362542A1 (en) | Directional resistivity measurements for azimuthal proximity detection of bed boundaries | |
| CN203722616U (en) | Antenna structure and mobile terminal | |
| CN108923843A (en) | A kind of UAV system mobile communication direction-finding system and direction-finding method | |
| CN201773183U (en) | Portable radio direction finding device | |
| CN104793204B (en) | Integrated intermediate layer-ionized layer detection system | |
| CN106405491A (en) | Unmanned plane monitoring system based on software radio | |
| CN201804103U (en) | Portable and integrated direction-finding mainframe with radio monitoring | |
| CN105789839A (en) | Portable air target information obtaining device and obtaining method thereof | |
| CN106338716A (en) | Three-coordinate radar technology based civil UAV (Unmanned Aerial Vehicle) capturing technology and system thereof | |
| CN206235731U (en) | A kind of GPR equipment | |
| CN114035150B (en) | Radio frequency source direction finding device and positioning method based on unmanned aerial vehicle lift-off platform | |
| CN104993220B (en) | Rotating field formula omnidirectional antenna, low altitude short range radar system and signal processing method | |
| CN105223542A (en) | A kind of monitoring and direction-finding method of carrying direction-finding equipment based on aircraft | |
| CN105158728A (en) | Search and rescue apparatus and method based on wireless direction finding and positioning | |
| KR101031601B1 (en) | Detection of lightning | |
| CN105789821B (en) | A/C detection device and its acquisition methods | |
| CN111537806A (en) | On-spot metering device of ocean ground wave radar electromagnetic signal | |
| JP3508531B2 (en) | Direction detection device | |
| CN206497212U (en) | Unmanned plane detection system and unmanned plane based on digital array | |
| KR101174443B1 (en) | A Position Detecting Device | |
| CN201285420Y (en) | Bi-polarized five channel radio monitoring and super-resolution direction-finding fixed station system | |
| CN105203990A (en) | Monitoring and direction-finding method based on levitation interferometer | |
| CN212008899U (en) | Dual-channel nine-vibration-element monitoring direction-finding system capable of being deployed rapidly |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20120526 |