CN114441865B - Portable electromagnetic wave intensity distributed detection system based on smart phone - Google Patents
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Abstract
The invention provides a portable electromagnetic wave intensity distributed detection system based on a smart phone, which comprises a portable detection device and an analysis service center, wherein the portable detection device is used for detecting the intensity of electromagnetic waves at each detection point and sending detected data and positioning data to the analysis service center through the smart phone; the system detects electromagnetic wave data of a plurality of places in a distributed mode, analyzes a plurality of wave sources of the region according to the data of the intensity, the frequency and the direction of the electromagnetic wave, and obtains electromagnetic wave influence information of any position in the region according to the position and the intensity of the wave sources.
Description
Technical Field
The present disclosure relates generally to the field of electromagnetic wave detection, and more particularly to a portable smartphone-based distributed electromagnetic wave intensity detection system.
Background
With the rapid development of Chinese economy and the progress of scientific technology, wireless communication technology has been widely applied to various fields and goes deep into thousands of households, the degree of automation and informatization is continuously improved, but people are brought into an environment full of electromagnetic radiation equipment, electromagnetic radiation exponentially increases, and a system capable of detecting wave source information and intensity in an area is needed in order to better deal with the electromagnetic radiation and make corresponding measures.
Now, a plurality of detection systems have been developed, and through a great number of searches and references, it is found that the existing detection systems, such as the systems disclosed in the publication numbers KR100594135B1, KR101426491B1, CN103323683B and KR101166520B1, include a signal detection module, a GPS module, a microprocessor control module and a display module, wherein the signal detection module is used for detecting electromagnetic wave signal intensity data, the GPS module is used for collecting geographical location information data, the microprocessor control module is used for fusing the electromagnetic wave signal intensity data and the geographical location information data and displaying through the display module, and can simultaneously detect multiple paths and multiple frequency bands of wireless signals, and monitor the signal intensity change in real time, so as to avoid the problem of missing detection of sudden change signals; the GPS module is used for collecting geographic coordinate information data corresponding to the current electromagnetic wave signal intensity data, and the display module is used for displaying data or/and images, so that a user can check the data more visually. However, this system can detect only when the wave source is known, and cannot determine the wave source and the intensity thereof by detecting electromagnetic wave information at a plurality of points, and the detection effect in an unknown area is not good.
Disclosure of Invention
The invention aims to provide a portable electromagnetic wave intensity distributed detection system based on a smart phone aiming at the existing defects,
the invention adopts the following technical scheme:
a portable electromagnetic wave intensity distributed detection system based on a smart phone comprises a portable detection device and an analysis service center, wherein the portable detection device is used for detecting electromagnetic wave data of detection points and uploading the electromagnetic wave data to the analysis service center through the smart phone, and the analysis service sub-center calculates positions of a plurality of wave sources and wave source intensities according to the detection data;
the analysis service center determines the number of wave sources according to the stimulated frequency region, and the judgment formula of the wave sources is as follows:
wherein, [ f ] min1 ，f max1 ]And [ f min2 ，f max2 ]The two stimulated frequency regions are respectively provided, and when the Q value is smaller than a threshold value, the two stimulated frequency regions correspond to the same wave source;
the analysis service center integrates a plurality of groups of data corresponding to a wave source into an analysis packet and sends the analysis packet to an internal wave source analysis unit, the wave source analysis unit draws straight lines according to detection coordinates and direction values in a group of data, and the straight lines enclose a polygonal area;
the wave source analysis unit calculates the wave source index Qw of the detection point by the following formula:
wherein E is 0 Is the maximum electric field strength in a set of data, [ f [ ] min ，f max ]Is a stimulated frequency area, (x, y) is a point coordinate in a polygonal area, and (x ', y') is a detection point coordinate;
the wave source analysis module is used for making the variance of the wave source indexes of all the detection points within the coordinate value (x) of the threshold value 0 ，y 0 ) As the coordinates of the wave source, based on (x) 0 ，y 0 ) Calculating the average value of wave source indexes of all detection points of the coordinate points to be used as the wave source intensity of the wave source;
the analysis service center processes all the analysis packets to obtain all the wave source coordinates and corresponding intensity indexes, and then obtains the comprehensive electromagnetic field intensity of any point by calculating the electromagnetic field influence intensity of all the wave sources on any point and superposing the electromagnetic field influence intensity;
furthermore, the portable detection device comprises a Bluetooth module, a frequency modulation module, a stimulated module, a direction module and a calculation module, wherein the Bluetooth module is used for being connected with a smart phone, the frequency modulation module is used for setting the frequency of the filtered electromagnetic waves, the stimulated module is used for detecting the current under the influence of the electromagnetic waves, the direction module is used for detecting the horizontal direction of the stimulated module, and the calculation module calculates the intensity of the electromagnetic waves according to the current data and the direction data;
further, the frequency modulation module sets the filtered center frequency to change at a fixed speed, the excited module rotates at a fixed angular speed and reads the detected current values at fixed time intervals, when the difference between adjacent current values exceeds a threshold value, the corresponding center frequency is recorded, and the center frequency is subjected to region division to obtain a plurality of excited frequency regions;
furthermore, the frequency modulation module sets the frequency of the excited frequency region after filteringIn the frequency range, the stimulated module rotates for one circle and collects a current value at the fastest sampling speed, and the calculation module calculates the maximum electric field intensity E of the stimulated frequency region for representing the intensity of the electromagnetic wave 0 Comprises the following steps:
wherein k is the coefficient of stimulation, I max For maximum detected current, I min In order to detect a minimum value of the current,
current value, t, of excited module when frequency modulation module is set to full filter mode 1 Is I max Corresponding point in time, t 3 Is I min Corresponding point in time, t 2 And t 4 Is composed of
A corresponding point in time;
further, the direction module is configured to measure an angle state of the excited module, take an angle β when the detected current value is the maximum as a direction value of the excited frequency region, and obtain coordinate information of the detected point through a positioning function of the smart phone.
The beneficial effects obtained by the invention are as follows:
the system has the characteristic of directivity according to the influence of electromagnetic waves on current, obtains the approximate position relation between a wave source and detection points by analyzing the relation between the current change value in a circuit and the direction of the circuit, obtains the intensity of the electromagnetic waves according to the change amplitude of the current, determines the approximate region range of one wave source according to the detection data of a plurality of detection points, and reduces the range according to the difference of the electromagnetic wave data detected by different detection points so as to determine the position of the wave source.
For a better understanding of the features and technical content of the present invention, reference is made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
FIG. 1 is a schematic view of the overall structural framework of the present invention;
FIG. 2 is a block diagram of a portable testing device according to the present invention;
FIG. 3 is a graph of current versus time in accordance with the present invention;
FIG. 4 is a schematic diagram showing the relationship between the polygon area where the wave source is located and the detection point;
FIG. 5 is a schematic diagram of the most suitable arc within the polygonal area according to the present invention.
Detailed Description
The following is a description of embodiments of the present invention with reference to specific embodiments, and those skilled in the art will understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
The first embodiment.
The embodiment provides a portable electromagnetic wave intensity distributed detection system based on a smart phone, which is combined with fig. 1 and comprises a portable detection device and an analysis service center, wherein the portable detection device is used for detecting electromagnetic wave data of each detection point and uploading the electromagnetic wave data to the analysis service center through the smart phone, and the analysis service sub-center calculates positions of a plurality of wave sources and wave source intensities according to the detection data;
the analysis service center determines the number of wave sources according to the stimulated frequency region, and the judgment formula of the wave sources is as follows:
wherein, [ f ] min1 ，f max1 ]And [ f min2 ，f max2 ]The two stimulated frequency regions are respectively provided, and when the Q value is smaller than a threshold value, the two stimulated frequency regions correspond to the same wave source;
the analysis service center integrates a plurality of groups of data corresponding to a wave source into an analysis packet and sends the analysis packet to an internal wave source analysis unit, the wave source analysis unit draws straight lines according to detection coordinates and direction values in a group of data, and the straight lines enclose a polygonal area;
the wave source analysis unit calculates the wave source index Qw of the detection point by the following formula:
wherein E is 0 Is the maximum electric field strength in a set of data, [ f [ ] min ，f max ]Is a stimulated frequency area, (x, y) is a point coordinate in a polygonal area, and (x ', y') is a detection point coordinate;
the wave source analysis module is used for making the variance of the wave source indexes of all the detection points within the coordinate value (x) of the threshold value 0 ，y 0 ) As the coordinates of the wave source, based on (x) 0 ，y 0 ) Calculating the average value of wave source indexes of all detection points of the coordinate points to be used as the wave source intensity of the wave source;
the analysis service center processes all the analysis packets to obtain all the wave source coordinates and corresponding intensity indexes, and then obtains the comprehensive electromagnetic field intensity of any point by calculating the electromagnetic field influence intensity of all the wave sources on any point and superposing the electromagnetic field influence intensity;
the portable detection device comprises a Bluetooth module, a frequency modulation module, a stimulated module, a direction module and a calculation module, wherein the Bluetooth module is used for being connected with a smart phone, the frequency modulation module is used for setting the frequency of filtered electromagnetic waves, the stimulated module is used for detecting current under the influence of electromagnetic waves, the direction module is used for detecting the horizontal direction of the stimulated module, and the calculation module calculates the intensity of the electromagnetic waves according to current data and direction data;
the frequency modulation module sets the filtered central frequency to change at a fixed speed, the excited module rotates at a fixed angular speed and reads the detected current values at fixed time intervals, when the difference between adjacent current values exceeds a threshold value, the corresponding central frequency is recorded, and the central frequency is subjected to regional division to obtain a plurality of excited frequency regions;
the frequency modulation module sets a frequency interval after filtering a stimulated frequency region, the stimulated module rotates for a circle and collects a current value at the fastest sampling speed, and the calculation module calculates the maximum electric field intensity E of the stimulated frequency region for expressing the intensity of the electromagnetic wave 0 Comprises the following steps:
wherein k is the coefficient of stimulation, I max For maximum detected current, I min In order to detect a minimum value of the current,
current value, t, of excited module when frequency modulation module is set to full filter mode 1 Is I max Corresponding point in time, t 3 Is I min Corresponding point in time, t 2 And t 4 Is composed of
A corresponding point in time;
the direction module is used for measuring the angle state of the excited module, taking the angle beta when the detected current value is maximum as the direction value of the excited frequency area, and acquiring the coordinate information of the detected point through the positioning function of the smart phone.
Example two.
The embodiment includes the whole content of the first embodiment, and provides a portable electromagnetic wave intensity distributed detection system based on a smart phone, which comprises a portable detection device and an analysis service center, wherein the portable detection device is used for detecting the electromagnetic wave intensity at each detection point, and sending the detected data and positioning data to the analysis service center through the smart phone, and the analysis service center processes the detection data and the positioning data of each monitoring point to obtain wave source information and the electromagnetic wave distribution condition of the whole area;
with reference to fig. 2, the portable detection device includes a bluetooth module, a frequency modulation module, a stimulated module, a direction module, and a calculation module, the bluetooth module is configured to be connected to a smart phone, the frequency modulation module is configured to set a filtered electromagnetic wave frequency, the stimulated module is configured to detect a current under the influence of an electromagnetic wave, the direction module is configured to detect a horizontal direction of the stimulated module, and the calculation module calculates an electromagnetic wave intensity according to current data and direction data;
the excited module is installed on a rotating platform, the rotating platform rotates according to a stable angular rate, the excited module is started, a detected current value is read at a fixed time interval, the central frequency of the frequency modulation module is adjusted, the central frequency changes according to a fixed change rate, when the difference value of two detected adjacent current values exceeds a threshold value, the central frequency at the moment is recorded, the recorded central frequency is represented by a number series f [ i ], after the central frequency is traversed for one time, the recorded central frequency f [ i ] is subjected to area division, and the area division process comprises the following steps:
s1, setting the frequency pointer i to 1, and setting the area pointer j to 1;
s2, taking f [ i ] as the left end point of the jth area;
s3, if f [ i +1] exists, calculating Δ f ═ f [ i +1] -fi, if Δ f is smaller than the threshold value, making i ═ i +1, repeating step S3, if Δ f is equal to or larger than the threshold value, jumping to step S4, if f [ i +1] does not exist, jumping to step S5;
s4, setting f [ i +1] as the right end point of the jth region, making i equal to i +1 and j equal to j +1, and going to step S2;
s5, taking f [ i ] as the right endpoint of the jth area, and recording the value of j at the moment as m to finish area division;
obtaining m stimulated frequency regions through the steps, and accurately detecting each stimulated frequency region;
referring to fig. 3, the filtered frequency interval of the fm module is set as the interval of the excited frequency region for accurate detection, which is denoted as f min ，f max ]Starting the excited module, rotating the rotating platform for one circle at an angular speed theta, detecting a current value at the fastest sampling speed, acquiring a relation function I (theta.t) of current and time, and finding four key points in a function image: (t) 1 ，I max )、
(t 3 ，I min ) And
wherein, I max Is the maximum value of the current in the function, I min Is the minimum value of the current in the functional image,
the current value of the excited module is set to be the current value of the frequency modulation module in the full filtering mode, and the excited module is not influenced by electromagnetic waves t in the full filtering mode 1 、t 2 、t 3 And t 4 Respectively corresponding 4 times;
the excited frequency region is used to express the maximum electric field intensity E of the electromagnetic wave intensity 0 Comprises the following steps:
k is a stimulated coefficient, is related to circuit design in a stimulated module and is obtained through experimental measurement;
in order to improve the measurement accuracy of the electromagnetic wave intensity, the rotating platform rotates for a circle at different angular speeds, current values are detected at the fastest sampling speed respectively, n current-time relation functions are obtained, and each function is marked as I i (θ i ·t)，θ i Representing the angular velocity of the rotating table when the function is acquired for the ith time;
similarly, four key points in each function are obtained and are respectively marked as (t) i-1 ，I i-max )、
(t i-3 ，I min ) And
the calculation module calculates the standard maximum current value according to the 4 x n key points
And standard minimum current value
The calculation module calculates a time deviation coefficient k according to the time of the 4 x n key points t ：
The excited frequency region is used to express the maximum electric field intensity E of the electromagnetic wave intensity 0 Comprises the following steps:
the direction module is used for measuring the angle state of the rotating platform, and taking the angle beta when the detected current value is maximum as the direction value of the excited frequency area;
the portable detection device transmits the excited frequency interval, the maximum electric field intensity and the direction value to the smart phone through the Bluetooth module, and the smart phone transmits the data to the analysis service center by combining the positioning data of the smart phone;
the analysis service center collects data of a plurality of detection points and then analyzes the data, firstly, a plurality of wave sources are determined according to stimulated frequency interval data uploaded by different detection points, and two stimulated frequency intervals are judged [ f min1 ，f max1 ]And [ f min2 ，f max2 ]The judgment formula of whether the wave source is a wave source is as follows:
when the Q value is smaller than the threshold value, the two excited frequency intervals correspond to the same wave source;
the analysis service center integrates all excited frequency intervals, maximum electric field intensity, direction values and positioning data corresponding to one wave source into one analysis packet to be sent to one wave source analysis unit inside for analysis, and the analysis service center is provided with a plurality of wave source analysis units capable of analyzing the positions of the plurality of wave sources simultaneously;
with reference to fig. 4, the wave source analyzing unit draws straight lines according to the positioning data and the direction values, and because of errors, the drawn straight lines do not converge at one point, but enclose a small-range polygon area, the wave source is located in the polygon area, a point is taken from the polygon area, the coordinate value is set to (x, y), and the wave source index Qw of each detection point is calculated according to the coordinate:
wherein, (x ', y') is the positioning coordinate of the detection point;
coordinate values (x, y) of the wave source indexes of all the detection points within the threshold value are used as the coordinates of the wave source;
the specific wave source coordinate confirmation process comprises the following steps:
s21, calculating the maximum wave source index Qwi of each detection point max And minimum Source index Qwi min The maximum wave source index refers to a wave source index obtained by calculating a point farthest from a detection point in a polygonal area, the minimum wave source index refers to a wave source index obtained by calculating a point closest to the detection point in the polygonal area, and i represents a serial number of the detection point;
s22, calculating an optimal wave source index Qw':
wherein n' is the number of detection points corresponding to the wave source;
s23, calculating the most suitable arc line of each detection point, and combining with the figure 5, the distance L between the most suitable arc line and the detection point i Comprises the following steps:
wherein L is max The farthest distance between the polygon area and the detection point, L min The shortest distance between the polygonal area and the detection point is obtained;
s24, obtaining the most suitable arc-line surrounding area of all the detection points;
s25, calculating the central point of the region in the step S4, wherein the central point is used as the coordinate of the wave source;
after wave source coordinates are determined, taking the average value of the wave source indexes of all the detection points as the intensity index of the wave source;
and the analysis service center processes all the analysis packets to obtain all the wave source coordinates and corresponding intensity indexes, and then obtains the comprehensive electromagnetic field intensity of any point by calculating the electromagnetic field influence intensity of all the wave sources on any point and superposing the electromagnetic field influence intensity.
The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention, and further, the elements thereof can be updated as the technology develops.
Claims (5)
1. A portable electromagnetic wave intensity distributed detection system based on a smart phone is characterized by comprising a portable detection device and an analysis service center, wherein the portable detection device is used for detecting electromagnetic wave data of detection points and uploading the electromagnetic wave data to the analysis service center through the smart phone, and the analysis service center calculates positions of a plurality of wave sources and wave source intensities according to the detection data;
the analysis service center determines the number of wave sources according to the stimulated frequency region, and the judgment formula of the wave sources is as follows:
wherein,
and
the two stimulated frequency regions are respectively provided, and when the Q value is smaller than a threshold value, the two stimulated frequency regions correspond to the same wave source;
the analysis service center integrates a plurality of groups of data corresponding to a wave source into an analysis packet and sends the analysis packet to an internal wave source analysis unit, the wave source analysis unit draws straight lines according to detection coordinates and direction values in a group of data, and the straight lines enclose a polygonal area;
the wave source analysis unit calculates the wave source index Qw of the detection point by the following formula:
wherein E is 0 Is the maximum electric field strength in a set of data, [ f [ ] min ，f max ]For the excited frequency region, (x, y) is a point coordinate within the polygonal region,
is a detection point coordinate;
the wave source analysis unit is used for making the variance of the wave source indexes of all the detection points within the coordinate value (x) of the threshold value 0 ，y 0 ) As the coordinates of the wave source, based on (x) 0 ，y 0 ) Calculating the average value of wave source indexes of all detection points of the coordinate points to be used as the wave source intensity of the wave source;
and the analysis service center processes all the analysis packets to obtain all the wave source coordinates and corresponding intensity indexes, and then obtains the comprehensive electromagnetic field intensity of any point by calculating the electromagnetic field influence intensity of all the wave sources on any point and superposing the electromagnetic field influence intensity.
2. The distributed detection system for the intensity of the electromagnetic wave based on the smart phone as claimed in claim 1, wherein the portable detection device comprises a bluetooth module, a frequency modulation module, a stimulated module, a direction module and a calculation module, the bluetooth module is used for connecting with the smart phone, the frequency modulation module is used for setting the frequency of the electromagnetic wave after filtering, the stimulated module is used for detecting the current under the influence of the electromagnetic wave, the direction module is used for detecting the horizontal direction of the stimulated module, and the calculation module calculates the intensity of the electromagnetic wave according to the current data and the direction data.
3. The system as claimed in claim 2, wherein the frequency modulation module sets the filtered central frequency to change at a fixed speed, the excited module rotates at a fixed angular speed and reads the detected current values at fixed time intervals, when the difference between adjacent current values exceeds a threshold value, the corresponding central frequency is recorded, and the central frequency is divided into a plurality of excited frequency regions.
4. The system according to claim 3, wherein the frequency modulation module sets a filtered frequency interval in the excited frequency region, the excited module rotates one cycle and collects a current value at a fastest sampling speed, and the calculation module calculates a maximum electric field intensity of the excited frequency region for representing the electromagnetic wave intensity
Comprises the following steps:
wherein k is a stimulated coefficient,
in order to detect the maximum value of the current,
in order to detect a minimum value of the current,
current value, t, of excited module when frequency modulation module is set to full filter mode 1 Is shown as I max Corresponding point in time, t 3 Is I min Corresponding timePoint, t 2 And t 4 Is composed of
Corresponding point in time.
5. The system according to claim 4, wherein the direction module is configured to measure an angle state of the excited module, and take an angle at which a detected current value is maximum
And as the direction value of the excited frequency region, the coordinate information of the detection point is acquired through the positioning function of the smart phone.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352745A (en) * | 1999-04-23 | 2002-06-05 | 株式会社日立制作所 | Electromagnetic wav generating source probing device, method therefor and analyzing method therefor |
| JP2006105901A (en) * | 2004-10-08 | 2006-04-20 | Yokohama Rubber Co Ltd:The | Electromagnetic wave leakage measuring method for electromagnetic wave shield enclosure and electromagnetic wave leakage measuring device thereof |
| CN103323683A (en) * | 2013-06-09 | 2013-09-25 | 中国科学院深圳先进技术研究院 | Portable electromagnetic wave strength detecting device and method |
| CN105004931A (en) * | 2015-05-08 | 2015-10-28 | 浙江大学 | Portable electromagnetic wave intensity distributed detection system based on intelligent mobile phone |
| CN108120881A (en) * | 2018-02-23 | 2018-06-05 | 深圳市良源通科技有限公司 | A kind of electromagnetic field test processing method and system |
| CN109283388A (en) * | 2018-11-06 | 2019-01-29 | 山东师范大学 | A kind of measuring device and measuring method that wave frequency is decayed with propagation distance |
| CN110850166A (en) * | 2019-12-09 | 2020-02-28 | 国网辽宁省电力有限公司鞍山供电公司 | Portable harmonic detector and harmonic analysis method thereof |
| CN113311251A (en) * | 2021-07-01 | 2021-08-27 | 北京森馥科技股份有限公司 | Electromagnetic radiation monitoring method and electromagnetic radiation monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210128521A (en) * | 2020-04-16 | 2021-10-27 | 삼성디스플레이 주식회사 | Display device performing still image detection, and method of detecting a still image in a display device |
-
2022
- 2022-02-10 CN CN202210123389.3A patent/CN114441865B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352745A (en) * | 1999-04-23 | 2002-06-05 | 株式会社日立制作所 | Electromagnetic wav generating source probing device, method therefor and analyzing method therefor |
| JP2006105901A (en) * | 2004-10-08 | 2006-04-20 | Yokohama Rubber Co Ltd:The | Electromagnetic wave leakage measuring method for electromagnetic wave shield enclosure and electromagnetic wave leakage measuring device thereof |
| CN103323683A (en) * | 2013-06-09 | 2013-09-25 | 中国科学院深圳先进技术研究院 | Portable electromagnetic wave strength detecting device and method |
| CN105004931A (en) * | 2015-05-08 | 2015-10-28 | 浙江大学 | Portable electromagnetic wave intensity distributed detection system based on intelligent mobile phone |
| CN108120881A (en) * | 2018-02-23 | 2018-06-05 | 深圳市良源通科技有限公司 | A kind of electromagnetic field test processing method and system |
| CN109283388A (en) * | 2018-11-06 | 2019-01-29 | 山东师范大学 | A kind of measuring device and measuring method that wave frequency is decayed with propagation distance |
| CN110850166A (en) * | 2019-12-09 | 2020-02-28 | 国网辽宁省电力有限公司鞍山供电公司 | Portable harmonic detector and harmonic analysis method thereof |
| CN113311251A (en) * | 2021-07-01 | 2021-08-27 | 北京森馥科技股份有限公司 | Electromagnetic radiation monitoring method and electromagnetic radiation monitoring system |
Non-Patent Citations (2)
| Title |
|---|
| 基于到达信号强度的空中目标辐射源定位方法;张游杰等;《计算机应用》;20170615;第23-26、38页 * |
| 电磁波检测;黄艺 等;《光谱实验室》;20131130;第30卷(第6期);第3282-3284页 * |
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