The phrase "a sparse array of" is correct and usable in written English.
It can be used in contexts related to data structures, programming, or describing a distribution that is not dense or is spread out.
Example: "The algorithm processes a sparse array of data points to optimize performance."
Alternatives: "a thin collection of" or "a scattered set of".
The lens array (blue) placed on top of a sparse array of pixels (red) whose pitch is equal to the lens array's.
We demonstrated the localisation of impacts in orthotropic carbon fibre reinforced polymer (CFRP) composite materials to within a few centimetres, using a sparse array of fibre Bragg grating (FBG) sensors.
The Alberta Large-area Time-coincidence Array (ALTA) uses a sparse array of cosmic ray detection stations located in high schools across a large geographical area to search for non-random high-energy cosmic ray phenomena.
The EEE Extreme Energy Eventss) Project is an experiment for the detection of cosmic ray muons by means of a sparse array of telescopes, each made of three Multigap Resistive Plate Chambers (MRPC), distributed over all the Italian territory and at CERN.
Recently, gas ionization sensors using a sparse array of vertically aligned gold nanorods as substitutes for CNTs have successfully been prepared for the first time [11 14].
Peak finding was first performed on each image (using the algorithm in [2]) to yield a sparse array of points, and these were then Radon transformed and its standard deviation projected, Fig. 5.
The new method presented in this paper gives theoretically unlimited spatial resolution by means of a very sparse array of stationary actuating/sensing elements.
Scientists have mainly relied on a relatively sparse array of ground instruments.
Designing a sparse array involves choosing the best or a better configuration from a large number of candidate arrays.
In ultrasonic phased array testing, a sparse array can increase the resolution by enlarging the aperture without adding system complexity.
Our numerical simulations demonstrate the superiority of the proposed optimized compressive arrays compared to the sparse arrays of the same complexity and to compressive arrays with randomly chosen combining kernels.
