Each receive channel streamed input echo samples to the delay calculation block, forming an M×1 vector of delayed echo samples as its output.
Thus, for the training phase, there are a total of ℓ=121 echo samples.
Schemes for spatially undersampling the synthetic aperture in along-track direction (a) and additionally selecting echo samples randomly in range direction (b).
With this study design however, signals from myelin water mostly decayed at the echo times sampled; the very short myelin component is therefore not identified by the fitting algorithm.
Your ears immediately prick up as echoing samples and unusual noises, including birdsong, kick off the track.
But there's nothing reverential or retro about its approach: it maroons these sounds amid a mass of disconnected, echoing samples – snatches of piano, distorted voices, buzzing electronics – and unexpected beats.
I layered it up with echoing samples from the bath scene of Fear And Loathing In This Las Vegas, where Hunter S Thompson's Attorney (Benicio Del Toro) is losing his mind and screaming in the bath.
She confronts these themes head-on from the opening moments of the mix, with an ominously echoing sample of the Brooklyn rapper Shyne: "Dear America, I'm only what you made me/ Young, black, and fucking crazy!" But then, as Grant is wont to do, she rises above these weightier matters.
The dotted line is the real beam sparse sampling echo, the red and blue lines express the simulation results of smooth approximation technique and FOCUSS algorithm, respectively.
Received echoes were sampled with a 2 GHz ADC card and displayed on a PC using software developed in the Matlab environment.
