CN106371081A - Multichannel measurement information configuration method based on space grid data alignment - Google Patents
Multichannel measurement information configuration method based on space grid data alignment Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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Abstract
The invention discloses a multichannel measurement information configuration method based on space grid data alignment. The method is characterized by carrying out space grid division on a space monitoring space, calculating pitching-orientation-distance information of each space grid corresponding to each radar by utilizing geometrical relationship between space grids and radars, recording mark numbers of the grids and establishing a grid retrieval matrix; then, determining a scanning irradiation mode of a wave beam, and enabling the grid retrieval matrix to be in one-to-one correspondence with the irradiation modes to obtain a two-dimensional grid-mode retrieval matrix; and finally, mapping the pitching-orientation-distance information of the space grids into a local grid information data retrieve table based on mode mark numbers, extracting a detection unit corresponding to each grid according to the grid data table and serving measurement accumulation corresponding to each channel detection unit as detection statistics amount and carrying out detection on a monitoring plane.
Description
Technical field
The invention belongs to Radar Targets'Detection technical field, close particularly to multi-site Distributed Network Radar signal cascade
Target detection technique.
Background technology
With scientific and technical development, its consequent scattering of the Stealthy Target such as invisbile plane, stealthy unmanned plane, cruise missile cuts
The little great challenge in face Modern Aerial Defense net system, for tackling the threat of Stealthy Target, using the network radar of distributed multinode
System, by after can effectively being overcome using technology such as space diversity, frequency diversity, polarity diversities and being based on different dimensions
To the difficult problem of the stealthy target of scattering propertiess.Distributed Network Radar technology is adopted to detect the target such as stealthy still at this stage
Resting on the theory study stage, being still a difficult problem for how realizing this technology in actual applications.Multi-source multidimensional signal joins
Close the key technology that treatment technology is in Distributed Network Radar detection system, wherein multi-site radar signal level combines inspection
Survey technology is to realize the important key technology that Distributed Network Radar effectively detects Stealthy Target.Signal cascade closes etection theory and grinds
Study carefully foundation mostly on a lot of hypothesis, each Air conduct measurement unit ideal of such as multi-site radar is registering, do not consider each website thunder
Reach the impact to target detection for the beam parameters, do not consider that target scattering characteristics obeys dependent with distribution in different website passages
Feature etc..These hypothesis are often invalid in actual applications, accordingly, it would be desirable to take into full account that practical situation research is distributed
Network radar signal processing technology, has important practical significance and Project Realization is worth.
Most of tradition is all based on hypotheses with regard to the research of signal level detections of radar, that is, selected away from
Signal level detection to be carried out on unit (detector unit), then travels through range cell successively, to realize to space detection zone
Signal level detects.Multi-site radar signal level associated detection technique need to consider, for each passage, wherein where should select first
One range cell should be used as the detector unit with other channel combined detections, multi-channel detection unit is carried out with registration and just becomes
For the problem needing to solve.Traditional signal level detection method such as rests on the theory analysis stage, does not generally account for actual answering
With present in how multi-channel detection unit is carried out with the problem of registration, referring to document (janatian n, modarres-
hashemi m,sheikhi a.“cfar detectors for mimo radars”,circuits,systems,and
signal processing,vol.32,no.3,pp.1389-1418,jun.2013.).The method that intuition solves this problem is
Travel through the physics resolution cell of each wave beam overlapping region, so there is amount of calculation with radar number exponential increase problem, unfavorable
In Project Realization.Therefore, inspired by multi-site signal level location technology, realize the target of multiplexer channel using space lattice technology
The registration of detector unit, this forwarding method computation structure is simple, computation complexity is low, be easy to practical application.
Content of the invention
The present invention is to solve above-mentioned technical problem it is proposed that a kind of multichannel based on space lattice alignment of data measures letter
Breath collocation method, divided by Spatial Rules solve the problems, such as traditional method space in length and breadth mismatch it is achieved that standardized number
According to retrieval, greatly reduce amount of calculation, maintain higher detection performance.
The technical solution used in the present invention is: a kind of multichannel measurement information configuration side based on space lattice alignment of data
Method, comprising:
S1, space surveillance region carry out space lattice division, by space monitoring region be evenly dividing for longitude, latitude,
Highly it is respectively the common g of δ lo × δ la × δ h sizemaxIndividual coffin grid, numbers to each space lattice successively and is
ng1,ng2,…,ngmax；
S2, determine the azimuth angle theta of the corresponding each radar of each space lattice central point, the angle of pitchAnd apart from rs, and according to each
The azimuth angle theta of the corresponding each radar website of grid geometric center, the angle of pitchAnd apart from rsSet up space lattice position information set；
S3, record the numbering of all irradiated space lattices, build grid search matrix；
S4, determine radar illumination pattern, by the grid search matrix in step s3 with the radar illumination pattern determining one by one
Corresponding, obtain two-dimensional grid-mode search matrix；
S5, the deflection θ information of the corresponding each radar of grid being provided according to grid positions information collection, set up and are based on pattern mark
Number the corresponding each passage of space lattice retrieve information, described deflection inspection through the deflection of pretreated radar echo signal
Rope information includes direction of the launch angle indexAnd receive deflection index
S6, the pitching angle information of the corresponding each radar of grid being provided according to grid positions information collection, set up and are based on pattern mark
Number the corresponding each passage of space lattice retrieve information, described angle of pitch inspection through the angle of pitch of pretreated radar echo signal
Rope information includes launching angle of pitch indexAnd receive angle of pitch index
S7, the range information of the corresponding each radar of grid being provided according to grid positions information collection, set up and are based on pattern label
The corresponding each passage of space lattice index through the range cell of pretreated radar echo signal
S8, according to range cell indexDirection of the launch angle indexesReceive deflection indexTransmitting angle of pitch rope
DrawReceive angle of pitch indexThis sextuple information, obtains the offline raster data table of a radar；
Not by the redundancy grid of beam, the offline grid after being updated in s9, the offline raster data table of removal
Tables of data.
Further, the corresponding direction of the launch angle of space lattice described in step s5 indexProcess be:
A1, obtained by step s2 space lattice to reference numeral be i radar azimuth firing angle θit；
A2, determine each launching beam deflection of this radar；
A3, each launching beam deflection of calculating and θitAngle, if angle be more than launching beam deflection maximum cover
Lid angle, then the corresponding launching beam deflection of space lattice index as sky；Otherwise, find out the launching beam side making angle minimum
To angle as space lattice corresponding launching beam deflection index.
Further, space lattice described in step s5 is corresponding receives deflection indexProcess be:
B1, obtained by step s2 space lattice to reference numeral be i radar reception azimuth angle thetair；
B2, determine this radar each receive wave beam deflection；
B3, calculating each reception wave beam deflection and θirAngle, if angle be more than receive wave beam deflection maximum cover
Lid angle, then the corresponding wave beam deflection that receives of space lattice index as sky；Otherwise, find out the reception wave beam side making angle minimum
Receive wave beam deflection index to angle as space lattice is corresponding.
Further, the corresponding transmitting of space lattice described in step s6 angle of pitch indexProcess be:
A`1, obtained by step s2 space lattice to reference numeral be i radar the transmitting angle of pitch
A`2, determine each launching beam angle of pitch of this radar；
A`3, calculate each launching beam angle of pitch withAngle, if angle be more than the launching beam angle of pitch maximum cover
Lid angle, then the corresponding launching beam angle of pitch of space lattice index as sky；Otherwise, find out so that the minimum launching beam of angle is bowed
The elevation angle is as space lattice corresponding launching beam angle of pitch index.
Further, space lattice described in step s6 is corresponding receives angle of pitch indexProcess be:
B`1, obtained by step s2 space lattice to reference numeral be i radar the reception angle of pitch
B`2, determine this radar each receive wave beam angle of pitch；
B`3, calculate each reception the wave beam angle of pitch withAngle, if angle be more than receive wave beam angle of pitch maximum cover
Lid angle, then the corresponding wave beam angle of pitch that receives of space lattice index as sky；Otherwise, find out so that the minimum reception wave beam of angle is bowed
The elevation angle receives wave beam angle of pitch index as space lattice is corresponding.
Further, the determination radar illumination pattern described in step s4, being specially each moment determines a kind of radar illumination
Pattern.
Further, the offline raster data table updating described in step s9 is according to zone number, transmitted wave bit number, reception
Radar numbering, transmitting radar numbering carry out structured storage respectively.
Beneficial effects of the present invention: the present invention carries out space lattice division, utilization space grid first to SS region
Lattice calculate the corresponding each radar pitching-azimuth-range information of space lattice with each radar geometrical relationship, record the mark of these grids
Number, build grid search matrix；It is then determined that the scanning irradiation mode of wave beam, by a pair of grid search matrix and irradiation mode 1
Should, obtain two-dimensional grid-mode search matrix；Finally space lattice orientation-pitching-range information is mapped as based on pattern mark
Number local grid information data retrieval table, according to raster data table extract the corresponding detector unit of each grid, by each passage examine
Survey corresponding measurement of unit to accumulate as detection statistic, supervision plane is detected；The method of the present invention is advised by space
Then divide and solve the problems, such as that mismatch, it is achieved that standardized data retrieval, greatly reduces meter in length and breadth in traditional method space
Calculation amount, maintains higher detection performance；It is an advantage of the current invention that taking full advantage of in the multi-beam of point after each detection
Valuable target echo information, it is achieved that closing detection based on space lattice signal cascade, compares all wave beams of traditional traversal
Irradiation mode and the method for echo-signal range cell, reduce calculation cost.
Brief description
A kind of multichannel measurement information collocation method flow process based on space lattice alignment of data that Fig. 1 provides for the present invention
Figure.
The azimuth angle theta of the corresponding each radar of space lattice central point that Fig. 2 provides for the present invention, the angle of pitchAnd apart from rs
Schematic diagram.
The two-dimensional grid that Fig. 3 provides for the present invention-mode search matrix schematic diagram.
Specific embodiment
For ease of skilled artisan understands that the technology contents of the present invention, below in conjunction with the accompanying drawings one being entered to present invention
Step explaination.
As shown in figure 1, the solution of the present invention is: a kind of multichannel measurement information configuration based on space lattice alignment of data
Method, comprising:
S1, space surveillance region carry out space lattice division, by space monitoring region be evenly dividing for longitude, latitude,
Highly it is respectively the common g of δ lo × δ la × δ h sizemaxIndividual coffin grid, that is, the longitude of each space lattice is δ
Lo, latitude is δ la, and highly for δ h, successively each space lattice being numbered is ng1,ng2,…,ngmax.
S2, determine the azimuth angle theta of the corresponding each radar of each space lattice central point, the angle of pitchAnd apart from rsInformation, and root
According to the azimuth angle theta of the corresponding each radar website of each grid geometric center, the angle of pitchAnd apart from rsSet up space lattice positional information
Collection；It is illustrated in figure 2 the azimuth angle theta of the corresponding each radar of space lattice central point, the angle of pitchAnd apart from rsSchematic diagram；Space
The azimuth angle theta of the corresponding each radar of grid central point is the angle of the line to space lattice geometric center for the radar and direct north,
Direction of the launch angle θ including space lattice to transmitting radart, with space lattice central point to the reception deflection θ receiving radarr；
The angle of pitch of the corresponding each radar of space latticeFor the angle of the line to grid geometric center for the radar and horizontal direction, including empty
Between grid to transmitting radar the transmitting angle of pitchWith space lattice central point to the reception angle of pitch receiving radarSpace grating
The corresponding each radar of lattice apart from rsIncluding space lattice central point to transmitting radar apart from rtWith space lattice central point to reception
Radar apart from rr.
S3, record the numbering of all irradiated space lattices, build grid search matrix；
There are n portion transceiver radar, t, the angular coverage of the wave beam of radar s transmitting isMaximum effect away from
From forThen in region, the angle to radar meets scope limitations set with distanceAll grid
Lattice are illuminated, record the numbering of these grids, build grid search matrix.
S4, determine radar illumination pattern, by the grid search matrix in step s3 with the radar illumination pattern determining one by one
Corresponding, obtain two-dimensional grid-mode search matrix；
Any time, in space, any grid may be by the part radar illumination in n portion radar, and possible radiation situation is altogether
HaveKind, each moment determines a kind of irradiation mode.By the grid search matrix in step s3 and photograph
Emission mode corresponds, and obtains two-dimensional grid-mode search matrix, as shown in Figure 3.
S5, the deflection θ information of the corresponding each radar of grid being provided according to grid positions information collection, set up and are based on pattern mark
Number the corresponding each passage of space lattice retrieve information, described deflection inspection through the deflection of pretreated radar echo signal
Rope information includes direction of the launch angle indexAnd receive deflection index
ciThe n of radar illumination pattern corresponding radar t transmittingθtThe vector that individual launching beam deflection is constituted is θt, θt=
{θ1t,θ2t,...,θnθt, wherein, θ1t,θ2t,...,θnθtThe direction pointed to for launching beam center and the angle of direct north,
Launching beam deflection numbering is followed successively by 1,2 ..., nθt, wave beam can only cover (θtmin,θtmax) between angle, (θtmin,
θtmax) determined by the parameter of radar hardware system.Space lattice to be detected should with suitable beam direction angle carry out registering.
With some space lattice corresponding direction of the launch angle indexProcess as a example, specifically include following steps:
A1, obtained by step s2 space lattice to reference numeral be i radar azimuth firing angle θit；
A2, determine each launching beam deflection of this radar；
A3, each launching beam deflection of calculating and θitAngle, if angle be more than launching beam deflection maximum cover
Lid angle, the deflection maximal cover angle of launching beam is by (θtmin,θtmax) determine, then space lattice corresponds to launching beam side
Index as sky to angle；Otherwise, finding out makes the minimum launching beam deflection of angle correspond to launching beam side as space lattice
To angle index.
ciThe n that radar illumination pattern corresponding radar r receivesθrThe individual vector receiving wave beam deflection composition is θr,For receiving the direction of beam center sensing and the angle of direct north, deflection
Numbering is followed successively by 1,2 ..., nθr, wave beam can only cover (θrmin,θrmax) between angle, (θrmin,θrmax) by radar hardware system
The parameter of system determines.Space lattice to be detected should with suitable beam direction angle carry out registering.
Receive deflection index so that wherein some space lattice is correspondingProcess as a example, specifically include following steps:
B1, obtained by step s2 space lattice to reference numeral be i radar reception azimuth angle thetair；
B2, determine this radar each receive wave beam deflection；
B3, calculating each reception wave beam deflection and θirAngle, if angle be more than receive wave beam deflection maximum cover
Lid angle, the deflection maximal cover angle receiving wave beam is by (θrmin,θrmax) determine, then space lattice is corresponding receives wave beam side
Index as sky to angle；Otherwise, finding out makes the minimum reception wave beam deflection of angle receive wave beam side as space lattice is corresponding
To angle index.
S6, the pitching angle information of the corresponding each radar of grid being provided according to grid positions information collection, set up and are based on pattern mark
Number the corresponding each passage of space lattice retrieve information, described angle of pitch inspection through the angle of pitch of pretreated radar echo signal
Rope information includes launching angle of pitch indexAnd receive angle of pitch index
ciRadar illumination pattern corresponding radar t transmittingThe vector that the individual launching beam angle of pitch is constituted is The direction pointed to for launching beam center and the angle of horizontal direction, pitching
Angle numbering is followed successively byWave beam can only coverBetween angle,By radar hardware system
The parameter of system determines.Space lattice to be detected should with the suitable wave beam angle of pitch carry out registering.
With wherein some space lattice corresponding transmitting angle of pitch indexProcess be；Example, specifically includes following steps:
A`1, obtained by step s2 space lattice to reference numeral be i radar the transmitting angle of pitch
A`2, determine each launching beam angle of pitch of this radar；
A`3, calculate each launching beam angle of pitch withAngle, if angle be more than the launching beam angle of pitch maximum cover
Lid angle, the maximal cover angle of the launching beam angle of pitch byDetermine, then the corresponding launching beam of space lattice is bowed
The elevation angle indexes as sky；Otherwise, find out so that the minimum launching beam angle of pitch of angle is bowed as the corresponding launching beam of space lattice
The elevation angle indexes.
ciRadar illumination pattern corresponding radar r receivesIndividual receive the wave beam angle of pitch constitute vector be For receiving the direction of beam center sensing and the angle of horizontal direction, pitching
Angle numbering is followed successively byWave beam can only coverBetween angle,By radar hardware system
The parameter of system determines.Space lattice to be detected should with the suitable wave beam angle of pitch carry out registering.
Receive angle of pitch index so that wherein some space lattice is correspondingProcess as a example, specifically include following steps:
B`1, obtained by step s2 space lattice to reference numeral be i radar the reception angle of pitch
B`2, determine this radar each receive wave beam angle of pitch；
B`3, calculate each reception the wave beam angle of pitch withAngle, if angle be more than receive wave beam angle of pitch maximum cover
Lid angle, receive wave beam angle of pitch maximal cover angle byDetermine, then the corresponding wave beam that receives of space lattice is bowed
The elevation angle indexes as sky；Otherwise, find out so that the minimum reception wave beam angle of pitch of angle is bowed as the corresponding wave beam that receives of space lattice
The elevation angle indexes.
S7, the range information of the corresponding each radar of grid being provided according to grid positions information collection, set up and are based on pattern label
The corresponding each passage of space lattice index through the range cell of pretreated radar echo signal
Due to having carried out equal interval sampling to echo-signal, each transceiver channel can be divided into big span according to the sampling interval
Echo-signal measurement information data after unit, sampling is corresponded with the range cell of transceiver channel, there are mapping relations.
Range cell is exactly that the total distance of radar wave is divided into portion portion, and which part is the meaning indexing be exactly, and usesRepresent the length first adjusted the distance divided by every part, then round up, just obtained which part, that is, indexes
It is r to grid center apart from sum that transmitting radar arrives the distance at grid center and reception radar, because radar is deposited
In maximum operating range rmax, the index of the distance in each passage for the space latticeSituations below should be divided into
Wherein,It is and sampling time interval tsDiscrete distance cell width in corresponding space
Wherein, c is the light velocity.
Each passage is established through the distance of pretreated radar echo signal and space lattice, ripple by above calculating
Bundle azimuth and wave beam angle of pitch mapping relations.Space lattice central point corresponding transmitting receiving channel through pretreated thunder
Reach echo-signal retrieval information collection
S8, according to range cell indexDirection of the launch angle indexesReceive deflection indexTransmitting angle of pitch rope
DrawReceive angle of pitch indexThis sextuple information, obtains the offline raster data table of each radar；
Not by the redundancy grid of beam, the offline grid after being updated in s9, the offline raster data table of removal
Tables of data；
Because not in the same time, zones of different is very big by the grid number change of each passage beam, so needing further
Remove in each offline raster data table not by the redundancy grid of beam, the offline raster data table finally being exported.
Offline raster data table carries out structure respectively according to zone number, transmitted wave bit number, reception radar numbering, transmitting radar numbering
Change storage, each space lattice information contains grid numbering, range cell index, direction of the launch angle index, receives deflection
Index, transmitting angle of pitch index, the sextuple information of reception angle of pitch index.Offline raster data table structure is as shown in table 1；
The offline raster data table structure of table 1
By transmitted wave bit number, transmitting radar numbering, receive radar numbering, launching beam azimuth index, transmitted wave
Bundle angle of pitch index, reception wave beam azimuth index, receiving wave beam angle of pitch index can be uniquely true in numerous echo datas
A fixed echo-signal measurement information data, then according to range cell index, you can extract acquisition specific range unit corresponding
Echo-signal measures.It should to choose which range cell in each transceiver channel corresponding in once multichannel combined detection
Echo-signal measures becomes insoluble problem.
Those of ordinary skill in the art will be appreciated that, embodiment described here is to aid in reader and understands this
Bright principle is it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.For ability
For the technical staff in domain, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made
Any modification, equivalent substitution and improvement etc., should be included within scope of the presently claimed invention.
Claims (7)
1. a kind of multichannel measurement information collocation method based on space lattice alignment of data is it is characterised in that include:
S1, space surveillance region carry out space lattice division, and space monitoring region is evenly dividing as longitude, latitude, highly
It is respectively the common g of δ lo × δ la × δ h sizemaxIndividual coffin grid, successively each space lattice being numbered is ng1,
ng2,…,ngmax；
S2, determine the azimuth angle theta of the corresponding each radar of each space lattice central point, the angle of pitchAnd apart from rs, and according to each grid
The azimuth angle theta of the corresponding each radar website of geometric center, the angle of pitchAnd apart from rsSet up space lattice position information set；
S3, record the numbering of all irradiated space lattices, build grid search matrix；
S4, determine radar illumination pattern, the grid search matrix in step s3 corresponded with the radar illumination pattern determining,
Obtain two-dimensional grid-mode search matrix；
S5, the deflection θ information of the corresponding each radar of grid being provided according to grid positions information collection, set up based on pattern label
The corresponding each passage of space lattice retrieves information, described deflection retrieval letter through the deflection of pretreated radar echo signal
Breath includes direction of the launch angle indexAnd receive deflection index
S6, the pitching angle information of the corresponding each radar of grid being provided according to grid positions information collection, set up based on pattern label
The corresponding each passage of space lattice retrieves information, described angle of pitch retrieval letter through the angle of pitch of pretreated radar echo signal
Breath includes launching angle of pitch indexAnd receive angle of pitch index
S7, the range information of the corresponding each radar of grid being provided according to grid positions information collection, set up the sky based on pattern label
Between the corresponding each passage of grid index through the range cell of pretreated radar echo signal
S8, according to range cell indexDirection of the launch angle indexesReceive deflection indexTransmitting angle of pitch index
Receive angle of pitch indexThis sextuple information, obtains the offline raster data table of a radar；
Not by the redundancy grid of beam, the offline raster data after being updated in s9, the offline raster data table of removal
Table.
2. a kind of multichannel measurement information collocation method based on space lattice alignment of data according to claim 1, its
It is characterised by, the corresponding direction of the launch angle of space lattice described in step s5 indexProcess be:
A1, obtained by step s2 space lattice to reference numeral be i radar azimuth firing angle θit；
A2, determine each launching beam deflection of this radar；
A3, each launching beam deflection of calculating and θitAngle, if angle be more than launching beam deflection maximal cover angle
Spend, then the corresponding launching beam deflection of space lattice indexes as sky；Otherwise, find out the launching beam deflection making angle minimum
As space lattice corresponding launching beam deflection index.
3. a kind of multichannel measurement information collocation method based on space lattice alignment of data according to claim 1, its
It is characterised by, space lattice described in step s5 is corresponding to receive deflection indexProcess be:
B1, obtained by step s2 space lattice to reference numeral be i radar reception azimuth angle thetair；
B2, determine this radar each receive wave beam deflection；
B3, calculating each reception wave beam deflection and θirAngle, if angle be more than receive wave beam deflection maximal cover angle
Spend, then the corresponding wave beam deflection that receives of space lattice indexes as sky；Otherwise, find out the reception wave beam deflection making angle minimum
Receive wave beam deflection index as space lattice is corresponding.
4. a kind of multichannel measurement information collocation method based on space lattice alignment of data according to claim 1, its
It is characterised by, the corresponding transmitting angle of pitch index of space lattice described in step s6Process be:
A`1, obtained by step s2 space lattice to reference numeral be i radar the transmitting angle of pitch
A`2, determine each launching beam angle of pitch of this radar；
A`3, calculate each launching beam angle of pitch withAngle, if angle be more than the launching beam angle of pitch maximal cover angle
Spend, then the corresponding launching beam angle of pitch of space lattice indexes as sky；Otherwise, find out the launching beam angle of pitch making angle minimum
As space lattice corresponding launching beam angle of pitch index.
5. a kind of multichannel measurement information collocation method based on space lattice alignment of data according to claim 1, its
It is characterised by, space lattice described in step s6 is corresponding to receive angle of pitch indexProcess be:
B`1, obtained by step s2 space lattice to reference numeral be i radar the reception angle of pitch
B`2, determine this radar each receive wave beam angle of pitch；
B`3, calculate each reception the wave beam angle of pitch withAngle, if angle be more than receive wave beam angle of pitch maximal cover angle
Spend, then the corresponding wave beam angle of pitch that receives of space lattice indexes as sky；Otherwise, find out the reception wave beam angle of pitch making angle minimum
Receive wave beam angle of pitch index as space lattice is corresponding.
6. a kind of multichannel measurement information collocation method based on space lattice alignment of data according to claim 1, its
It is characterised by, the determination radar illumination pattern described in step s4, being specially each moment determines a kind of radar illumination pattern.
7. a kind of multichannel measurement information collocation method based on space lattice alignment of data according to claim 1, its
It is characterised by, the offline raster data table updating described in step s9 is compiled according to zone number, transmitted wave bit number, reception radar
Number, transmitting radar numbering carry out structured storage respectively.
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| CN112068125A (en) * | 2020-08-18 | 2020-12-11 | 南京六季光电技术研究院有限公司 | Six-dimensional ground penetrating radar system |
| CN113835078A (en) * | 2021-11-30 | 2021-12-24 | 中国电子科技集团公司信息科学研究院 | Signal level joint detection method and device based on local three-dimensional grid |
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