CN104184516A - Method for judging point-to-point terrain blocking of millimeter wave communication antenna - Google Patents
Method for judging point-to-point terrain blocking of millimeter wave communication antenna Download PDFInfo
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- CN104184516A CN104184516A CN201410476734.7A CN201410476734A CN104184516A CN 104184516 A CN104184516 A CN 104184516A CN 201410476734 A CN201410476734 A CN 201410476734A CN 104184516 A CN104184516 A CN 104184516A
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Abstract
The invention discloses a method for judging point-to-point terrain blocking of a millimeter wave communication antenna. The method comprises the steps of generating a straight line between points A and B based on positional information of a first station A and a second station B; discretizing the straight line to obtain a series of position coordinates of points on the straight line; inquiring a special map including landform height data so as to obtain landform height data included by corresponding discrete points; comparing a highest point of the whole height data with the height data at the position corresponding to the straight line between the points A and B so as to judge whether terrain blocking exists between the points A and B or not. By means of the method, millimeter wave communication feasibility of the two point positions can be judged in advance or in real time, accordingly advanced deployment and real-time selection are achieved, and millimeter wave maneuvering deployment and vehicle-mounted communication reliability guarantee are greatly improved.
Description
Technical field
The present invention relates to millimetre-wave attenuator technical field, be specifically related to a kind of for sentencing the method that whether exists landform to block between 2 of millimeter wave two communication antennas of knowing.
Background technology
Millimetre-wave attenuator, as a kind of novel military communication means, can be applicable to battlefield.Millimetre-wave attenuator adopts point-to-point communication mode, and the lobe of its millimeter wave is little, generally only has 3 ° of left and right, and communication efficiency and confidentiality are all greatly improved.When realizing point-to-point communication, must preferentially realize the aligning centering of two antennas.Under random case, the axis of two antennas of communication equipment is generally positioned at two different planes, therefore antenna alignment is actually a more complicated space, receives Suo Wenti.Projection from antenna axis in pairwise orthogonal plane (aximuthpiston and pitch plane) can be found out, as long as in orientation and pitching face, adjustment can be by two antenna alignments respectively.This method of adjustment is received rope by space and is converted two simple horizontal and vertical faces receipts ropes to, can simplify and receive rope control algolithm.Currently used method is: antenna can first be realized alignment of orientation, and then adjusts pitching to point to, the centering of finally realizing two antennas.
In centering adjustment process, in order to guarantee quick centring, need several data, as communication site's aerial position data (longitude and latitude), antenna is towards orientation angles data, antenna datum-plane position etc.The method of obtaining these data is: 1) adopt GPS (or military map or dipper system) to identify the particular geographic location (also comprising elevation information) of two antennas; 2) adopt magnetic compass detect and indicate antenna towards; 3) adopt 3-axis acceleration sensor to detect antenna pitching and level angle., all inevitably there is certain error in the acquisition of these parameters, when error is during to a certain degree, rely on these data and carry out antenna pair and just may have some problems.And in these several data, antenna towards bearing data there is larger error.
Before two antennas communicate beginning, need the above-mentioned 3 class data of these two antennas must between two websites, carry out exchanges data, this just need to carry out transfer of data by other means of communication, after obtaining the other side's data, by inputting during these data adjust controller to antenna pair attitude, thus make drive system on the basis of these data to antenna towards regulating with pitching.By repeatedly adjusting, finally complete antenna pair, and set up communication link.Because millimetre wavelength is short, in transmitting procedure, be easy to be affected, when in long-distance transmissions, if exist some to block between two antennas, particularly due between two antennas, when its topography and geomorphology is during higher than line between two antennas, its communication link is just difficult to set up.And under these circumstances, two ends operating personnel can not know that it can not realize the reason of communication all the time, still can spend a large amount of time carries out antenna pair adjustment.This has not only delayed the plenty of time, and finally still can not guarantee set up antenna communication success.
Millimeter wave, when with antenna point point to-point communication, because communication distance is far away, may exist on communication link and be blocked by high topography and geomorphology, and communicating pair is owing to can not knowing in time this state, causes spending a large amount of time for antenna pair.
In the implementation method of existing millimeter wave antenna centering communication, generally, first to determine the position of setting up two communication antennas, when determining this aerial position, must guarantee can not have the topography and geomorphology higher than these 2 lines between these 2 positions.In former most of situation, millimeter wave is also mainly used in fixed wirelessly transmitting data, when antenna installation, can understand landforms situation between communication link by reconnoitring, and has determined whether to block existence, and therefore, the situation that appearance can not be communicated by letter is less.But when millimeter wave is for vehicle-mounted or while using with maneuver mode, because movable region changes, between erecting a television antenna, first complete exploration no longer possible, based on this, to the millimetre-wave attenuator under this environment for use, still adopt former method, its communication reliability just becomes and is difficult to guarantee.
Therefore, millimeter wave antenna set up or centering before, can there be quick means to know in advance whether 2 positions can guarantee to communicate by letter successfully, particularly, for the communication support aspect of motion in the field deployment, vehicle-mounted millimeter wave point-to-point communication implementation, have very important significance.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, provides a kind of for sentencing the knowledge method of sentencing that between 2 of millimeter wave communication antennas, landform is blocked of knowing, for solving that millimeter wave communication antenna transfers out that terrain shape is blocked between point-to-point and the problem that is difficult to sentence knowledge.
Consider the problems referred to above of prior art, according to an aspect disclosed by the invention, the present invention by the following technical solutions:
For sentence know millimeter wave communication antenna point-to-point between a landform method of blocking, it comprises:
The first website A of antenna obtains local position and altitude information, and obtained information is sent to the second website B;
The second website B of antenna obtains local position and altitude information, and obtained information is sent to the second website A;
Positional information based on the first website A and the second website B is called the map of respective regions in the information processing platform;
On the map calling, show the first website A of antenna and the position of the second website B, according to the position of these two websites, obtain a rectangular area;
The the first website A and the second website B that with straight line, connect antenna, calculate distance between two points, and this straight line carried out to discretization processing, finally to obtain these 2 points that connect on straight line that are positioned at after series of discrete;
Calculate the position data of discrete rear each point;
Call the map that specifically includes relief data, the corresponding landform height above sea level of the position data data of inquiry each point, then the landform height above sea level data interpolating that this is inquired generates each some height above sea level data value of fixed point really;
And on information terminal, the height above sea level data value of described definite point is shown, thereby obtain the geomorphic profile of connecting line between 2 of communication antennas, form the landforms curve that roughly reflects the landforms situation between two websites;
The the first website A and the second website B point-to-point transmission landforms height above sea level that compare antenna, if described landforms curve peak position is lower than a value range C of line straight line between the first website A and the second website B, according to whether existing the actual conditions that stop to determine a value range D between the first website A and the second website B, this definite value range D and described value range C are compared, if described value range C is greater than determined value range D, thinks not exist to stop, otherwise exist and stop.
In order to realize better the present invention, further technical scheme is:
According to one embodiment of the invention, to determining of value range C, as the connecting line between the first website A and the second website B exists by the situation in city, consider city pile, if value range C is greater than the height of The Highest Tower (can preset according to classes of cities) and does not exist and stop, otherwise think that existence stops.
The present invention can also be:
According to another embodiment of the invention, for the first website A of antenna or the position of the second website B, be local gps data or Big Dipper data.
According to another embodiment of the invention, for calling the information processing platform of respective regions map, be computer, mobile terminal of mobile telephone or the special-purpose embedded information processing terminal.
Compared with prior art, one of beneficial effect of the present invention is:
Of the present invention a kind of for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, have:
1) can, before disposing millimeter wave antenna, by inputting selected 2 positions, to prejudge 2 positions, whether there is the geomorphic feature of carrying out millimetre-wave attenuator, thereby accomplish to dispose in advance and select;
2), for motor-driven, vehicle-mounted millimeter wave communication, if side's aerial position is fixed (normally such situation), the opposing party can in the process of moving, can judge and determine selectable communication position, thereby accomplish to dispose real-time at any time.
Accompanying drawing explanation
For clearer explanation present specification embodiment or technical scheme of the prior art, to the accompanying drawing of required use in the description of embodiment or prior art be briefly described below, apparently, the accompanying drawing the following describes is only the reference to some embodiment in present specification, for those skilled in the art, in the situation that not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 shows A, 2 straight lines of B and region according to an embodiment of the invention and generates schematic diagram.
Fig. 2 shows discretization A, 2 straight line schematic diagrames of B according to an embodiment of the invention.
Fig. 3 shows A, the calculating of B point coordinates and GPS (or Big Dipper) location point according to an embodiment of the invention and determines schematic diagram.
Fig. 4 shows depth of section information schematic diagram between A, B point according to an embodiment of the invention.
Fig. 5 shows depth of section information schematic diagram between A, B point in accordance with another embodiment of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Fig. 1～Fig. 5, a kind of for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it comprises:
The first website A of antenna obtains local position and altitude information, and gives the second website B by obtained information;
The second website B of antenna obtains local position and altitude information, and gives the second website A by obtained information;
Positional information based on the first website A and the second website B is called the map of respective regions in the information processing platform;
On the map calling, show the first website A of antenna and the position of the second website B, according to the position of these two websites, obtain a rectangular area;
The the first website A and the second website B that with straight line, connect antenna, calculate distance between two points, and this straight line carried out to discretization processing, finally to obtain these 2 points that connect on straight line that are positioned at after series of discrete;
Calculate the position data of discrete rear each point;
Call the map that specifically includes relief data, utilize the position data of each point to go to inquire about landform height above sea level data, then the landform height above sea level data interpolating that this is inquired generates each some height above sea level data value of fixed point really;
On information terminal, the height above sea level data value of described definite point is shown, obtain the geomorphic profile of connecting line between 2 of communications, form the landforms curve that roughly reflects the landforms situation between two websites;
The the first website A and the second website B point-to-point transmission landforms height above sea level that compare antenna, if described landforms curve peak position is lower than a value range C of line air line distance between the first website A and the second website B, according to whether existing the actual conditions that stop to determine a value range D between the first website A and the second website B, this definite value range D and described value range C are compared, if described value range C is greater than determined value range D, thinks not exist to stop, otherwise exist and stop.Situation as shown in Figure 4 does not exist and blocks.
As shown in Figure 5, landforms curve peak position is higher than line straight line between the first website A and the second website B, and the landform between these 2 exists and blocks.
Embodiment 2
As shown in Fig. 1～Fig. 5, a kind of for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it comprises:
Step 1, the first website A obtain local gps data (or Big Dipper data) and altitude information, and send to the second website B by other means.
Step 2, the second website B obtain local gps data (or Big Dipper data) and altitude information, and send to the first website A by other means.
Step 3, the gps data based on two websites (or Big Dipper data), (cartographic information can be loaded in down on this letter information platform in advance in the information processing platform (can be computer, mobile phone or specific information processing terminal), to call the map of respective regions, map can be Baidu's map, can be also other maps).
Step 4, on this map, demonstrate this two antenna site locations, by two antenna site locations, produce a rectangle frame, and can amplify and the operation such as dwindle map, see shown in schematic diagram 1.
Step 5, map is carried out to background process, with straight line, connects 2 points, calculate distance between two points, and this straight line is carried out to discretization processing, can be undertaken by certain ratio (can set), as every 30 meters a bit, can be also 35 meters, 45 meters etc.Finally obtain these 2 points that connect on straight line that are positioned at after series of discrete.As shown in Figure 2.
Step 6, according to the position of point on map, can calculate the gps data of discrete rear each point, as shown in Figure 3.
Step 7, again using the gps data of each point as location point, go to inquire about landform height above sea level data, these data can download to the information processing terminal in advance, these data can be paid or freely be obtained by specialized agency.
Step 8, interpolation generate each some height above sea level data of fixed point really.
Step 9, on information terminal, these data are shown, obtain the geomorphic profile of connecting line between 2 of communications, form a curve, this curve has roughly reflected the landforms situation between two websites, as shown in Figure 4.
Connecting line between 2 of step 10, comparison the first website A and the second website B point-to-point transmission landforms height above sea level and the first website A and the second website B, if landforms curve peak position also will be lower than the first website A and the certain value range C of 2 connecting lines of the second website B, can assert between the first website A, the second website B and not exist and block, as shown in Figure 4.
Step 11, to the determining of value range C, can come as the case may be to determine, if existence between the first website A, the second website B connecting line is by the situation in city, consideration city pile, value range C must be greater than the height of The Highest Tower.
A, 2 of B are apart from Computing Principle:
Known: A point coordinates (Xa, Ya), B point coordinates (Ya, Yb), as shown in Figure 3, and in the situation that not considering that earth radius affects, A, 2 distances of B can be calculated as follows:
Discretization AB straight line is N point, and the position coordinates that n is ordered can be expressed as:
Here: n=1.2....N.
Thereby try to achieve the GPS position numerical value of any point on these two straight lines.
In sum, patent of the present invention provide a kind of can be in advance by the obtaining of relevant information, integrated and process, thereby before antenna installation, just can substantially judge between 2 antennas, whether can realize millimetre-wave attenuator may (being that possibility is blocked by factors such as middle topography and geomorphologies).This determines communication point position fast for when the maneuver millimeter wave point-to-point communication, and the aspect such as allocating antenna all has very large value fast.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, identical similar part cross-references between each embodiment.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment " etc., the specific features, structure or the feature that refer in conjunction with this embodiment description are included at least one embodiment of the application's generality description.In specification, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to fall within the scope of the invention.
Although with reference to a plurality of explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and within execution mode will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of and claim open in the application, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (6)
- For sentence know millimeter wave communication antenna point-to-point between a landform method of blocking, it is characterized in that it comprises:The first website A of antenna obtains local position and height above sea level data, and obtained information is sent to the second website B;The second website B of antenna obtains local position and height above sea level data, and obtained information is sent to the second website A;Positional information based on the first website A and the second website B is called the map of respective regions in the information processing platform;On the map calling, show the first website A of antenna and the position of the second website B, according to the position of these two websites, obtain a rectangular area;The the first website A and the second website B that with straight line, connect antenna, calculate distance between two points, and this straight line carried out to discretization processing, to obtain these 2 points that connect on straight line that are positioned at after series of discrete;Calculate the position data of each discrete point;By comprising the map of Terrain Elevation data, inquire about the corresponding landform height above sea level of the position data data of each discrete point, the landform height above sea level data interpolating again this being inquired generates each some height above sea level data value of fixed point really, and on information terminal, the height above sea level data value of described definite point is shown, thereby the geomorphic profile that obtains connecting line between 2 of communications, forms the landforms curve that roughly reflects the landforms situation between two websites;The the first website A and the second website B point-to-point transmission landforms height above sea level that compare antenna, if described landforms curve peak position is lower than a distance range value C of line straight line between the first website A and the second website B, according to whether existing the actual conditions that stop to determine a value range D between the first website A and the second website B, this definite value range D and described value range C are compared, if described value range C is greater than determined value range D, thinks not exist to stop, otherwise exist and stop.
- According to claim 1 for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it is characterized in that in the situation that the connecting line between the first website A and the second website B passes city, consider city pile, if the height that described value range C is greater than The Highest Tower does not exist and stops, otherwise think that existence stops.
- According to claim 1 for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it is characterized in that for the first website A of antenna or the position of the second website B be local gps data or Big Dipper data.
- According to claim 1 for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it is characterized in that described height above sea level data are that air pressure detects altitude information.
- According to claim 1 for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it is characterized in that for calling the information processing platform of respective regions map be a kind of computer, mobile terminal of mobile telephone or special-purpose embedded information processing terminal of being selected from.
- According to claim 1 for sentence know millimeter wave communication antenna point-to-point between the landform method of blocking, it is characterized in that the topography and geomorphology data for obtaining between the first website A and the second website B connecting line obtain through processing by the map that comprises Terrain Elevation data.
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Citations (2)
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| CN1148760A (en) * | 1996-08-14 | 1997-04-30 | 第二炮兵工程设计研究院 | Double-net diffraction passive relay communication system |
| US6757548B1 (en) * | 1998-08-31 | 2004-06-29 | Motorola, Inc. | Method and apparatus in a wireless messaging system for estimating and using required delivery parameters to meet a target transmission reliability |
-
2014
- 2014-09-17 CN CN201410476734.7A patent/CN104184516A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148760A (en) * | 1996-08-14 | 1997-04-30 | 第二炮兵工程设计研究院 | Double-net diffraction passive relay communication system |
| US6757548B1 (en) * | 1998-08-31 | 2004-06-29 | Motorola, Inc. | Method and apparatus in a wireless messaging system for estimating and using required delivery parameters to meet a target transmission reliability |
Non-Patent Citations (2)
| Title |
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| 吉小梅: "《新课标教案地理 七年级 上R》", 31 July 2013 * |
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