Correlation function measurement method and apparatus, and wave

Optics: measuring and testing – By particle light scattering – With photocell detection

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

356345, 356359, G01B 902

Patent

active

057483140

ABSTRACT:
A method for measuring a correlation function wherein correlation function is determined at a high speed without using a fast analog-to-digital convertor. According to the method, a correlation function between a first observation signal and a second observation signal in a predetermined observation frequency band is measured. The first observation signal and the second observation signal are limited to the observation frequency band and converted to a first signal of a first frequency and a second signal of a second frequency by frequency conversion based on a same reference frequency, respectively. A predetermined frequency difference is set between the first frequency and the second frequency. Then the first signal and the second signal are multiplied and a vector detection based on the reference frequency is performed for a difference frequency component between the two signals to obtain the phase information. An apparatus for measuring the correlation function based on the above method is disclosed. Further, a method and an apparatus wherein the correlation function measurement is performed to visualize a wave source image such as a sound source image and a radiowave source image based on the principle of holography is disclosed.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Correlation function measurement method and apparatus, and wave does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correlation function measurement method and apparatus, and wave , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlation function measurement method and apparatus, and wave will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-60358

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.