Pulse-Doppler Processing
The data normally associated with intrumentation radar systems contain only a few
range gates for each PRI. Instrumentation enhancements for the Ariane reentry
program provide continuous sampling in range. Where the MkV data represent samples at a given range,
the ADDR system collects contiguous range-gate samples. Physical range is determined
from the number of samples between the pulse (main bang) and the return of interest.
In order to interpret the data and extract desired information, a data processing system was
developed in Labview. The software provides the following capabilities:
- Data Reduction
- Extract desired data set from raw data on ADDR system
- Search raw data to find locations of main bangs
- Analyze location of main bangs to identify waveform attributes
- Extract byte addresses (for each interleaved waveform)and store for use in processing
- Data Processing
- Use byte addresses to identify desired data for processing
- Apply iterative SNR optimization routine for bias rejection on pulse-to-pulse basis
- Perform Doppler processing, remove zero Doppler, and sum Doppler bins
- Apply matched filtering routine
- Correlate a PRI to the date/time when it was collected
- Automatically track peaks in Range-Amplitude trace
- Create multiple plots
- Range-Time-Intensity (RTI)
- Range-Doppler-Intensity (RDI)
- Doppler-Time-Intensity (DTI)
- Range-Amplitude
- Export plots in JPG/BMP formats
- Export data in ASCII format
| 
