Measurement and signature intelligence analysis and reduction technique
View Patent ↗Methods and apparatus compress data, comprising an In-phase (I) component and a Quadrature (Q) component. Statistical characteristics of the data are utilized to convert the data into a form that requires fewer bits in accordance with the statistical characteristics. The data may be further compressed by transforming the data and by modifying the transformed data in accordance with a quantization conversion table that is associated with the processed data. Additionally, redundancy may be removed from the processed data with an encoder. Subsequent processing of the compressed data may decompress the compressed data in order to approximate the original data by reversing the process for compressing the data with corresponding inverse operations. Interleaved I and Q components can be processed rather than separating the components before processing the data. The processed data type may be determined by providing metadata to retrieve the appropriate quantization table from a knowledge database.
1. A method for compressing received data comprising a first received component and a second received component, the method comprising:
(a) receiving an interleaved stream of a first plurality of first received component samples with a second plurality of second received component samples;
(b) converting the first received component to a first converted component in accordance with a statistical characteristic; and
(c) converting the second received component to a second converted component in accordance with the statistical characteristic.
2. The method of claim 1 , further comprising:
(d) determining the statistical characteristic that is associated with the first received component and the second received component.
3. The method of claim 1 , wherein (b) comprises mapping the first received component to a plurality of bins in accordance with the statistical characteristic in order to form the first converted component and (c) comprises mapping the second received component to the plurality of bins in accordance with the statistical characteristic in order to form the second converted component.
4. The method of claim 1 , further comprising:
(d) transforming the first converted component into a first transformed component and the second converted component into a second transformed component, wherein a first transformed plurality of first transformed component samples is interleaved with a second transformed plurality of second transformed component samples;
(e) interleaving a first transformed plurality of first transformed component samples with a second transformed plurality of second transformed component samples;
(f) quantizing the first transformed component into a first quantized transform and the second transformed component into a second quantized transform; and
(g) interleaving a first quantized plurality of first quantized transform samples with a second quantized plurality of second quantized transform samples.
5. The method of claim 4 , further comprising:
(h) encoding the first quantized transform into a first compressed component and the second quantized transform into a second compressed component; and
(i) interleaving a first compressed plurality of first compressed component samples with a second compressed plurality of second compressed component samples.
6. The method of claim 1 , wherein the first received component corresponds to a received
In-phase (I) component and the second received component corresponds to a received Quadrature (Q) component.
7. A computer-readable medium having computer-executable instructions that, when executed by a computer, cause the computer to perform steps recited in claim 1 .
8. A method for decompressing data in order to approximate original data, the original data comprising a first original component and second original component, the method comprising:
(a) receiving an interleaved stream of a first converted plurality of first converted component samples and a second converted plurality of second converted component samples;
(b) obtaining a first converted component and a second converted component; and
(c) converting the first converted component to a first decompressed component in accordance with a statistical characteristic.
9. The method of claim 8 , further comprising:
(d) determining the statistical characteristic that is associated with the first original component.
10. The method of claim 8 , wherein (c) comprises mapping the first converted component to the first decompressed component from a plurality of bins in accordance with the statistical characteristic.
11. The method of claim 8 , wherein the first original component corresponds to an original In-phase (I) component and the second original component corresponds to an original Quadrature (Q) component.
12. The method of claim 8 , wherein (a) comprises:
(i) obtaining a first quantized transform and a second quantized transform;
(ii) inverse quantizing the first quantized transform into a first transformed component and the second quantized transform into a second transformed component; and
(iii) inverse transforming the first transformed component into the first converted component and the second transformed component into the second converted component.
13. The method of claim 12 , wherein (i) comprises:
(1) obtaining a first compressed component and a second compressed component; and
(2) decoding the first compressed component into the first quantized transform and the second compressed component into the second quantized transform.
14. A computer-readable medium having computer-executable instructions that, when executed by a computer, cause the computer to perform steps recited in claim 8 .
15. An apparatus for decompressing data, the apparatus comprising:
a decompression module that obtains a first compressed component and a second compressed component, that converts the first compressed component to a first decompressed component in accordance with a statistical characteristic of the data, and that interleaves a first plurality of first compressed component samples with a second plurality of second compressed component samples.