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Processed MIT/LL's ROSA Data
MIT/LL's ROSA Data
The MIT/LL's Range Open System Architecture (ROSA) data format follows a well-defined structure. It generally contains the data format structure followed by the data file. The file is usually written in binary format to reduce the file size.
The standard MIT/LL's ROSA recording file consists of the following types:
- Signature File ( *.b1 and *.b2 ): Contains raw and processed Inphase and Quadphase (I&Q) data and auxiliary data from each subsystem, including the RTP. The structure of the signature file is the same for ROSA I and ROSA II.
- Catalog File ( *.c ): Contains A-scope display, button presses, and other variables set in the startup configuration. Some variables that may be included at pointing vector, tracking trajectory, tracking errors, etc. The catalog is only present in ROSA I.
- Mission File ( *.msn ): Contains network messages including A-scope display, button presses, and all other processed information displayed to the user. The *.msn is only present in ROSA II. It replaces the catalog file in ROSA I.
- Database File ( *.db ): Contains all variables that are defined for each component. This file is continuously being recorded when the Radar Control Programming (RCP) is executed and stops when the program is terminated. The recorded data is structured in an SQL format. This file is only present in ROSA II.
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Our engineers have written numerous analysis software that reads the MIT/LL's ROSA data file. Some of this software are used by industry-leading organizations to evaluate the dynamic motions of the object being tracked. Our engineers also updated the MATLAB routines in the calibration suite of the ROSA I and II. We can assist in developing your analysis tools, or we can convert the ROSA Data format to any desired format.
Processed WB-COSIP Data
WB-COSIP Data
The original WideBand-COherent Signal Processing (WB-COSIP) radar is developed by XonTech Incorporated in the 1990s. Majority of the recorded data file can be inferred from the real-time programming header files.
The standard WB-COSIP recording file consists of two types:
- Radar Refresh Data ( *.rrd ) File: Contains the raw Inphase and Quadphase (I&Q) Analog-to-Digital (A/D) data. The raw data is directly from the output of the A/D converter that has been low-pass filtered and decimated. For each set of I&Q, a mini auxiliary data is attached that acts as time-stamp for the data.
- Auxiliary ( *.rrd.aux ) File: Contains the processed auxiliary variables for each subsystems including timing/waveform generator and receivers. It also includes tracking filter data, tracking errors and estimated radar cross section.
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Our engineers recently developed the Control Timing Subsystem of the WB-COSIP and made several modifications to the header files. Our engineers have extensive knowledge of the different variables in the header files. We have developed numerous software used by leading industries to extract information from the recorded data file. We recently converted the WB-COSIP data to Weather data structure used by the Army Research Laboratory (ARL) to analyze weather phenomena.