EMPLOYMENT OF PSEUDO-ORTOGONAL SEQUENCES IN PHASED ARRAY SYSTEMS FOR SIMULTANEOUS EXPLORATION IN MULTIPLE ADDRESSES

摘要

We propose the use of phased array techniques with an encoded excitation from a set of pseudo-orthogonal sequences, such as those derived from pseudo-random or CSS sequences (Complementary Sets of Sequences), as well as their subsequent process stage, all of which allows to obtain images of the environment with high resolution from a single emission that simultaneously covers multiple differentiated directions of the environment, unlike the classic phased array systems that require an emission for each sector to be inspected. This invention introduces a new method of excitation of the array elements and post-processing of the received echoes that increases the speed of image generation, as well as the maximum distance to be inspected while maintaining the image quality.