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Preventing adversaries from interfering with communications is crucial to national security. Tactical satellite ...

Abstract: Phased arrays are an important subsystem for satellite communication with flexible beam steering capability. The multibeam technique demonstrates superior performance with multiple ...

Abstract: Extremely large antenna arrays envisioned for 6G incurs near-field effect, where steering vector depends on angles and range simultaneously. Polar-domain near-field codebooks can focus ...

Keeping satellite communications secure is becoming more important as space becomes increasingly crowded. Military and ...

"description": "Given a binary matrix find the largest rectangle containing only 1s", "name": "Approach 1: Brute Force O(m³n³)", "summary": "Iterate over all ...

the rectangle contains at most k negative numbers. A rectangular subarray is defined by choosing two rows r1 <= r2 and two columns c1 <= c2, and summing all elements grid[i][j] where r1 <= i <= r2 and ...