CN110161468A - Satellite-borne SAR transmission channel data are changed into as receiving channel function module design method - Google Patents
Satellite-borne SAR transmission channel data are changed into as receiving channel function module design method Download PDFInfo
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- G—PHYSICS
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Abstract
The present invention relates to a kind of satellite-borne SAR transmission channel data in satellite-borne SAR data conversion technique field to change into as receiving channel function module design method, the following steps are included: selecting the exploitation environment of Matlab software and language as function module design, select function function as the model of function module design；According to function functional form and external interface content, defined function name and input, output parameter；Transmission channel data algorithm is combined into according to the fusion of imaging receiver channel data and efficient data conversion algorithm is developed based on Matlab concurrent operation tool box, by calling Matlab software related command to realize program development；It is standardized using encapsulation technology, generalization, expansible encapsulation.Present invention accomplishes satellite-borne SAR ground dress star integrated test system or the demands of Ground Application processing system standardization exploitation, improve the efficiency of integration testing and Ground Application processing.
Description
Technical field
The present invention relates to satellite-borne SAR data conversion technique fields, and in particular, to a kind of satellite-borne SAR transmission channel data
It changes into as receiving channel function module design method.
Background technique
For the detection demand for realizing the wide covering of high-resolution, system is imaged using multiple receiving channels in satellite-borne SAR, in echo
Data down transmission is into surface process, it usually needs the data combination of multiple receiving channels is fused into the number of multiple transmission channels
According to, such as the combination of 1 imaging receiver channel data is fused into 8 transmission channel data, by 6 imaging receiver channel data groups
Conjunction is fused into 8 transmission channel data etc..Need to reach down the transmission channel number on ground in subsequent data handling procedure
According to imaging receiver channel data is converted into, first is that providing change data for the processing of follow-up data pulse pressure；Second is that may determine that detection
The correctness of each channel data of imaging receiver, transmission channel data are changed into as channel data is satellite-borne SAR ground integration testing system
One of system or the important link of Ground Application processing system.
Transmission channel data are changed into as receiving channel data do not have the software of stand-alone development or program, which is only contained in
In entire Data Format Transform, do not have the condition of individually judgement detection imaging receiver data correctness, and the function can not
The exploitation for adapting to standardization ground integrated test system or ground application system cannot achieve efficient, automatic test or number
According to the demand of processing.
With the continuous development of satellite-borne SAR technology, the especially development of high resolution SAR satellite, primary booting imaging is obtained
The echo data amount taken is increasing, for efficient management and mass data is handled, first is that needing to develop efficient integration testing
System or Ground Application processing system；Second is that needing towards generalization, expansible, interchangeable demand to entire process flow
Modular division and standardized designs and exploitation are carried out according to functional characteristic.
Through the retrieval to the prior art, application No. is the Chinese invention patents of CN200810238949.X to disclose integration
High speed remote sensing data receiving and processing equipment, characterized by comprising: serioparallel exchange module, frame synchronization process module, combination decoding
Module, data distribution module, assembly coding module, parallel serial conversion module and load imaging module；When receiving data, defend
The serial remotely-sensed data of star downstream demodulator output is sent into frame synchronization process after serioparallel exchange module is converted into parallel data
Module；Frame synchronization process module carries out frame synchronization process to parallel data, searches frame alignment word and calculates fault-tolerant parameter, according to frame
Long and frame alignment word generates frame synchronizing signal, and frame synchronizing signal, data frame are sent to combination decoding module；Combine decoding module root
Data frame is descrambled according to frame synchronizing signal, is sent after RS decoding and CRC check processing to caching, the data in caching are through data
Data distribution module is sent into after synthesis and filtering processing；The data transmitted are sent into load imaging mould by data distribution module
Block, while the data transmitted are also sent into local memory device or are transmitted by network；Load imaging module is to biography
The data come carry out solution format analysis processing first, then classify according to load classification, are respectively processed to every a kind of data,
It forms displayable data and carries out real-time display；When sending data, the upstream data sent to satellite is sent through data distribution module
Enter caching；Assembly coding module is from reading data in caching and is scrambled to the data, after RS coding and CRC check processing
It is sent into parallel serial conversion module；Parallel serial conversion module converts parallel data into serial data, serial data and external series clock
It is sent into satellite uplink modulator together.The invention is not able to satisfy at satellite-borne SAR ground dress star integrated test system or Ground Application
The demand for managing system standardization exploitation can not improve the efficiency of integration testing and Ground Application processing.
Summary of the invention
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of satellite-borne SAR transmission channel data to change into as connecing
Channel data function module design method is received, realizes that satellite-borne SAR transmission channel data are quickly converted into imaging band data, simultaneously
Realize the standardization of functional module.
The present invention relates to a kind of satellite-borne SAR transmission channel data to change into as receiving channel data function modularity,
The following steps are included:
Step 1: the exploitation environment of Matlab software and language as function module design is selected, and selects function
Model of the functional form as function module design；
Step 2: according to function functional form and external interface content, defined function name and input, output parameter；
Step 3: according to imaging receiver channel data fusion be combined into transmission channel data algorithm and based on Matlab it is parallel
Operational tool case develops efficient data conversion algorithm, and by calling Matlab software related command to realize program development；
Step 4: according to exploitation complete function function M file, using the encapsulation technology based on modularization thought into
The Interface Matching of row standardization, generalization, the expansible, encapsulation that can call, realization functional module and integrated test system and melt
It closes.
Preferably, the step one is using Matlab software and language as the exploitation environment of function module design, choosing
Function functional form with input/output argument, convenient for standardization, it is expansible, alternatively design and develop.
Preferably, the step two defines transmit_data_to_image_data as function name；Definition transmission
Channel data transmit_data array is as input parameter；Imaging receiver channel data image_data after definition conversion
Array is output parameter.
Preferably, the transmit_data array is cell array, contains M_1 element, each cell array element altogether
For N_1 row × M_2 column, wherein N_1 row indicates that the corresponding transmission channel number of each pulse, M_2 column indicate each transmission channel pair
The byte number answered；The imaging receiver channel data image_data array after converting is defined as output parameter, array form is member
Born of the same parents' array contains M_3 element altogether, and each cell array element is N_2 row × M_4 column, and wherein N_2 row indicates that each pulse pair is answered
Imaging receiver port number, M_4 column indicate the corresponding byte number in each imaging receiver channel.
Preferably, the step three is using pulse as circulating unit, and definition ii is pulse number variable, wherein ii=1:
Pulse_num, [~, pulse_num]=size (transmit_data), reading auxiliary data first is to judge imaging receiver
Port number；Secondly different transfer algorithms is selected according to imaging band number, wherein calculating each imaging band number according to transfer algorithm
According to the position in transmission channel data；The data of each imaging band are finally extracted from transmission channel data according to location information
And save as cell array.
Preferably, the step four marks transmit_data_to_image_data.m using encapsulation technology
Standardization encapsulation and solidification, develop for flow chart of data processing and call, and facilitate and carry out tool storage room management.
Preferably, encapsulation and solidification, including Matlab are standardized to transmit_data_to_image_data.m
Algorithm transformation calls two-part content with Matlab algorithm.
Preferably, it in the step 2, using the Informal development program of Matlab standard function function, defines first
Transmission channel data define the imaging band data after converting as input parameter as output parameter；Secondly in data conversion
Using pulse as minimal circulation, classification directly is carried out to transmission channel data according to fixed formatting in each circulation and extracts formation
Imaging receiver channel data；Finally program development is carried out according to the requirement for meeting parallel operation rules between pulse.
Preferably, it in the step three, is connect according to transmission channel data and the actual imaging for reading auxiliary data acquisition
Port number is received, judges and selects data conversion format, classification extraction is carried out to each pulse transmission channel data, then with first packet number
The form of group is stored as imaging receiver channel data.
Preferably, in the step four, standardized packages design is as follows: progress Matlab algorithm transformation first, for
Transmit_data_to_image_data.m file carries out, first is that addition normalization function head, function output=
transmit_data_to_image_data(input)；Second is that addition input parameter interface, transmit_data=
input.transmit_data；Third is that addition output parameter interface, output.image_data=image_data；Secondly into
Row Matlab algorithm calls, and Matlab engine uses client/server (Client/Server) calculation.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, satellite-borne SAR transmission channel data of the invention are changed into as receiving channel data function modularity is to be directed to
Transmission channel data are changed into as receiving channel functional module, by using Matlab software and language, using function function
Form defines input and output external interface parameter, the transfer algorithm of exploitation adaptation concurrent operation, using based on modularization thought
The standardized designs and exploitation of encapsulation technology realization functional module；
2, satellite-borne SAR transmission channel data of the invention are changed into as receiving channel data function modularity passes through mark
Functional module after standardization design and exploitation can form testing process or place with other function module according to external interface parameter
It manages process and completes particular task；
3, satellite-borne SAR transmission channel data of the invention are changed into as receiving channel data function modularity can be
Do not change on the basis of functional module input and output external interface parameter that only upgrade algorithm realizes ground integrated test system or ground
The generalization, expansible of entire ground integrated test system or ground application system is realized in the upgrading of face application processing system
Target；
4, satellite-borne SAR transmission channel data of the invention are changed into as receiving channel data function modularity emphasis solution
Transmission channel data change into the height as channel data in satellite-borne SAR ground dress star integration testing or the Ground Application treatment process of having determined
Effectization, standardization, generalization and expansible problem, meet satellite-borne SAR ground dress star integrated test system or ground is answered
With the demand of processing system standardization exploitation, the efficiency of integration testing and Ground Application processing is improved.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon.
Fig. 1 is that satellite-borne SAR transmission channel data of the present invention are changed into as receiving channel data function modularity is illustrated
Figure；
Fig. 2 is that satellite-borne SAR transmission channel data of the present invention are changed into as receiving channel data program algorithm design drawing.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment
In the present embodiment, satellite-borne SAR transmission channel data of the invention are changed into as receiving channel data function module design
Method is described below:
Step 1: the exploitation environment of Matlab software and language as function module design is selected, and selects function
Model of the functional form as function module design；
Step 2: according to function functional form and external interface content, defined function name and input, output parameter；
Step 3: according to imaging receiver channel data fusion be combined into transmission channel data algorithm and based on Matlab it is parallel
Operational tool case develops efficient data conversion algorithm, and by calling Matlab software related command to realize program development；
Step 4: according to exploitation complete function function M file, using the encapsulation technology based on modularization thought into
The Interface Matching of row standardization, generalization, the expansible, encapsulation that can call, realization functional module and integrated test system and melt
It closes.
Next the present invention is described in detail.
The present invention relates to satellite-borne SAR ground integration testings or Ground Application to handle, in particular a kind of standardization, generalization star
Carry SAR transmission channel data conversion at needed for integration testing or Ground Application processing needed for imaging receiver channel data technology,
The Data Format Transform being related in satellite-borne SAR ground dress star integration testing or Ground Application treatment process, is based on Matlab software
The satellite-borne SAR of function function model, Matlab language efficient parallel mathematical algorithm and standardized packages call format transmits
Channel data is changed into as receiving channel data function modularity, including transmission channel data conversion is at imaging receiver channel
The algorithm of data, the normalization function exploitation based on Matlab language and the standardized packages based on modularization thought.This hair
Bright purpose is to provide a kind of satellite-borne SAR transmission channel data and changes into as receiving channel data function modularity, realizes
Satellite-borne SAR transmission channel data are quickly converted into imaging band data, while realizing the standardization of functional module.
A kind of satellite-borne SAR transmission channel data are changed into as receiving channel data function modularity, including following step
It is rapid:
Step 1: the exploitation environment of Matlab software and language as function module design is selected, and selects function
Model of the functional form as function module design；
Step 2: according to function functional form and external interface content, defined function name and input, output parameter；
Step 3: according to imaging receiver channel data fusion be combined into transmission channel data algorithm and based on Matlab it is parallel
Operational tool case develops efficient data conversion algorithm, and by calling Matlab software related command to realize program development；
Step 4: according to exploitation complete function function M file, using the encapsulation technology based on modularization thought into
The Interface Matching of row standardization, generalization, the expansible, encapsulation that can call, realization functional module and integrated test system and melt
It closes.
Preferably, the step one selects the exploitation environment of Matlab software and language as function module design, and one
It is its preferred mature, stable, efficient operational performance；Second is that it is preferred that the order of its easy multiplicity；Third is that it is preferred that having input defeated
The function functional form of parameter out, convenient for standardization, it is expansible, alternatively design and develop.
Preferably, the step two defines transmit_data_to_image_data as function name；Definition transmission
Channel data transmit_data array is as input parameter, and wherein transmit_data is cell array, altogether containing M_1 member
Element, each cell array element are N_1 row × M_2 column, and wherein N_1 row indicates the corresponding transmission channel number of each pulse, M_2 column
Indicate the corresponding byte number of each transmission channel；Imaging receiver channel data image_data array after definition conversion is output
Parameter, array form are cell array, contain M_3 element altogether, and each cell array element is N_2 row × M_4 column, wherein N_2
Row indicates that the corresponding imaging receiver port number of each pulse, M_4 column indicate the corresponding byte number in each imaging receiver channel.
Preferably, the step three is using pulse as circulating unit, and definition ii is pulse number variable, wherein ii=1:
Pulse_num, [~, pulse_num]=size (transmit_data).Read auxiliary data first to judge imaging receiver
Port number；Secondly different transfer algorithms is selected according to imaging band number, wherein calculating each imaging band number according to transfer algorithm
According to the position in transmission channel data；The data of each imaging band are finally extracted from transmission channel data according to location information
And save as cell array.
Preferably, the step four is using the encapsulation technology based on modularization thought to transmit_data_to_
Image_data.m is standardized encapsulation and solidification, mainly includes that the transformation of Matlab algorithm and Matlab algorithm call two parts
Content.
More specifically, main contents of the invention are as follows:
1, Data Format Transform algorithm designs
According to the actual imaging receiving channel number that transmission channel data and reading auxiliary data obtain, judges and select data
Format transformation carries out classification extraction to each pulse transmission channel data, is then stored as imaging receiver in the form of first packet array
Channel data.
2, function function designs
Program is developed using the formation of Matlab standard function function, defines transmission channel data (first packet number first
Group form) as input parameter, the imaging band data (first packet array form) after converting are defined as output parameter；Secondly in number
Directly classify to transmission channel data according to, using pulse into minimal circulation, each circulation is interior when converting according to fixed formatting
Extraction forms imaging receiver channel data；Finally program development is carried out according to the requirement for meeting parallel operation rules between pulse.
3, standardized packages design
The transformation of Matlab algorithm is carried out first, is carried out mainly for transmit_data_to_image_data.m file
, first is that addition normalization function head, function output=transmit_data_to_image_data (input)；
Second is that addition input parameter interface, transmit_data=input.transmit_data；Third is that addition output parameter interface,
Output.image_data=image_data.Secondly Matlab algorithm calling is carried out, Matlab engine uses client/clothes
Business device (Client/Server) calculation.In software, Qt program to Matlab engine transmitting order and is counted as client
According to, and from engine receive calculate return the result and data.Matlab engine receives relevant order as server-side
And parallel tool case can be called to carry out Distributed Parallel Computing on backstage after data.
In conclusion satellite-borne SAR transmission channel data of the invention are changed into as receiving channel data function module design side
Method is changed into for transmission channel data as receiving channel functional module, by using Matlab software and language, application
Function functional form, define input and output external interface parameter, exploitation adapts to the transfer algorithm of concurrent operation, using being based on
The encapsulation technology of modularization thought realizes the standardized designs and exploitation of functional module；Satellite-borne SAR transmission channel number of the invention
According to the functional module changed into as receiving channel data function modularity by standardized designs and after developing according to externally
Interface parameters testing process can be formed with other function module or process flow completes particular task；Satellite-borne SAR of the invention
Transmission channel data are changed into as receiving channel data function modularity can not change functional module inputoutput pair
Only upgrade algorithm realizes the upgrading of ground integrated test system or Ground Application processing system on the basis of external tapping parameter, realizes
Generalization, the expansible target of entire ground integrated test system or ground application system；Satellite-borne SAR transmission of the invention is logical
Track data change into as receiving channel data function modularity emphasis solve satellite-borne SAR ground dress star integration testing or
Transmission channel data change into the high efficiency as channel data, standardization, generalization and expansible in the applicable procedures of face
Problem meets the demand of satellite-borne SAR ground dress star integrated test system or the standardization exploitation of Ground Application processing system, improves
The efficiency of integration testing and Ground Application processing.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of satellite-borne SAR transmission channel data are changed into as receiving channel function module design method, which is characterized in that including with
Lower step:
Step 1: the exploitation environment of Matlab software and language as function module design is selected, and selects function function
Model of the form as function module design；
Step 2: according to function functional form and external interface content, defined function name and input, output parameter；
Step 3: transmission channel data algorithm is combined into according to the fusion of imaging receiver channel data and based on Matlab concurrent operation
Efficient data conversion algorithm is developed in tool box, and by calling Matlab software related command to realize program development；
Step 4: the function function M file completed according to exploitation is marked using the encapsulation technology based on modularization thought
Standardization, generalization, the expansible, encapsulation that can call are realized functional module and the Interface Matching of integrated test system and are merged.
2. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method, special
Sign is that for the step one using Matlab software and language as the exploitation environment of function module design, choosing has input defeated
The function functional form of parameter out, convenient for standardization, it is expansible, alternatively design and develop.
3. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method, special
Sign is that the step two defines transmit_data_to_image_data as function name；Define transmission channel data
Transmit_data array is as input parameter；Definition convert after imaging receiver channel data image_data array to be defeated
Parameter out.
4. satellite-borne SAR transmission channel data as claimed in claim 3 are changed into as receiving channel function module design method, special
Sign is that the transmit_data array is cell array, contains M_1 element altogether, and each cellular element is N_1 row × M_2
Column, wherein N_1 row indicates that the corresponding transmission channel number of each pulse, M_2 column indicate the corresponding byte number of each transmission channel；It is fixed
Justice convert after imaging receiver channel data image_data array into output parameter, array form is cell array, altogether containing M_3
A element, each cellular element are N_2 row × M_4 column, and wherein N_2 row indicates the corresponding imaging receiver port number of each pulse,
M_4 column indicate the corresponding byte number in each imaging receiver channel.
5. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method, special
Sign is that the step three is using pulse as circulating unit, and definition ii is pulse number variable, wherein ii=1:pulse_num,
[~, pulse_num]=size (transmit_data), reading auxiliary data first is to judge imaging receiver port number；Secondly
Different transfer algorithms is selected according to imaging band number, wherein calculating each imaging band data in transmission channel according to transfer algorithm
Position in data；The data of each imaging band are finally extracted from transmission channel data according to location information and save as cellular
Array.
6. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method, special
Sign is, the step four using encapsulation technology to transmit_data_to_image_data.m be standardized encapsulation and
Solidification is developed for flow chart of data processing and is called, and is facilitated and carried out tool storage room management.
7. satellite-borne SAR transmission channel data as claimed in claim 6 are changed into as receiving channel function module design method, special
Sign is, is standardized encapsulation and solidification to transmit_data_to_image_data.m, including the transformation of Matlab algorithm with
Matlab algorithm calls two-part content.
8. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method, special
Sign is, in the step 2, develops program using the formation of Matlab standard function function, defines transmission channel number first
According to as input parameter, the imaging band data after converting are defined as output parameter；It secondly is most with pulse in data conversion
Partial circulating directly carries out classification to transmission channel data according to fixed formatting in each circulation and extracts that form imaging receiver logical
Track data；Finally program development is carried out according to the requirement for meeting parallel operation rules between pulse.
9. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method, special
Sign is, in the step three, according to the actual imaging receiving channel number that transmission channel data and reading auxiliary data obtain, sentences
Break and select data conversion format, classification extraction is carried out to each pulse transmission channel data, is then deposited in the form of first packet array
Storage is imaging receiver channel data.
10. satellite-borne SAR transmission channel data as described in claim 1 are changed into as receiving channel function module design method,
It is characterized in, in the step four, standardized packages design is as follows: progress Matlab algorithm transformation first, for transmit_
Data_to_image_data.m file carries out, first is that addition normalization function head, function output=transmit_
data_to_image_data(input)；Second is that addition input parameter interface, transmit_data=input.transmit_
data；Third is that addition output parameter interface, output.image_data=image_data；Secondly Matlab algorithm tune is carried out
With Matlab engine uses client/server calculation.
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