Claims
- 1. A method for generating a Gaussian random noise signal, the method comprising the steps of:
generating a first predetermined number of outputs from a first random number generator having a first period; generating a second predetermined number of outputs from a second random number generator having a second period different from the first period; calculating a first average from a first combination of inputs from the first random number generator and the second random number generator; calculating a second average from a second combination of inputs from the first random number generator and the second random number generator; and generating a Gaussian output based on the first average and the second average.
- 2. The method of claim 1, wherein at least one of the first random number generator and the second random number generator has a period of 2N wherein N represents a number of samples generated.
- 3. The method of claim 1, wherein the Gaussian output is calculated by taking an average of the first average and the second average.
- 4. The method of claim 1, wherein the second period is advanced by a predetermined number of samples from the first period, after each period.
- 5. The method of claim 4, wherein the predetermined number of samples is one.
- 6. The method of claim 1, further comprising the step of:
discarding a predetermined number of samples from one of the first random number generator and the second random number generator wherein an audible article due to periodicity is minimized.
- 7. The method of claim 1, wherein at least one of the first period and the second period is increased to
- 8. The method of claim 1, further comprising the steps of:
generating a third predetermined number of outputs from a third random number generator having a third period; calculating a third average from a combination of inputs from the first random number generator, the second random number generator and the third random number generator; and generating a Gaussian output based on a combination of the first average, the second average and the third average.
- 9. The method of claim 1, further comprising the steps of:
generating at least another predetermined number of outputs from another random number generator having another period; calculating at least another average from a combination of inputs from a plurality of random number generators; and generating a Gaussian output based on a combination of a plurality of averages.
- 10. The method of claim 1, wherein a period of the Gaussian random noise signal is approximately at least a plurality of hours.
- 11. The method of claim 1, wherein a period of the Gaussian random noise signal is approximately at least 20 hours.
- 12. The method of claim 1, wherein a period of the Gaussian random noise signal is substantially aperiodic.
- 13. A system for generating a Gaussian random noise signal, the method comprising:
a first random number generator for generating a first predetermined number of outputs wherein the first random number generator has a first period; a second random number generator for generating a second predetermined number of outputs wherein the second random number generator has a second period different from the first period; a first average calculator for calculating a first average from a first combination of inputs from the first random number generator and the second random number generator; a second average calculator for calculating a second average from a second combination of inputs from the first random number generator and the second random number generator; and an output for generating a Gaussian output based on the first average and the second average.
- 14. The system of claim 13, wherein at least one of the first random number generator and the second random number generator has a period of 2N wherein N represents a number of samples generated.
- 15. The system of claim 13, wherein the Gaussian output is calculated by taking an average of the first average and the second average.
- 16. The system of claim 13, wherein the second period is advanced by a predetermined number of samples from the first period, after each period.
- 17. The system of claim 16, wherein the predetermined number of samples is one.
- 18. The system of claim 13, wherein a predetermined number of samples is discarded from one of the first random number generator and the second random number generator wherein an audible article due to periodicity is minimized.
- 19. The system of claim 13, wherein at least one of the first period and the second period is increased to
- 20. The system of claim 13, further comprising:
a third random number generator for generating a third predetermined number of outputs wherein the third random number generator has a third period; and a third average calculator for calculating a third average from a combination of inputs from the first random number generator, the second random number generator and the third random number generator; wherein the output for generating the Gaussian output is based on a combination of the first average, the second average and the third average.
- 21. The system of claim 13, further comprising:
at least another random number generator for generating another predetermined number of outputs wherein the another random number generator has another period; and at least another calculator for calculating another average from a combination of inputs from a plurality of random number generators; wherein the output for generating the Gaussian output is based on a combination of a plurality of averages.
- 22. The system of claim 13, wherein a period of the Gaussian random noise signal is approximately at least a plurality of hours.
- 23. The system of claim 13, wherein a period of the Gaussian random noise signal is approximately at least 20 hours.
- 24. The system of claim 13, wherein a period of the Gaussian random noise signal is substantially aperiodic.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from provisional applications Serial No. 60/297,265, filed Jun. 12, 2001 and Ser. No. 60/305,157, filed Jul. 16, 2001, which are incorporated by reference in their entirety.
Provisional Applications (2)
|
Number |
Date |
Country |
|
60297265 |
Jun 2001 |
US |
|
60305157 |
Jul 2001 |
US |