Abstract: Typically, synthetic aperture radar (SAR) uses linear frequency modulation (LFM) signal to acquire high-resolution images, requiring spectral windowing to suppress sidelobes while ...

The tinySA is a compact, low-cost handheld spectrum analyzer and RF signal generator designed for hobbyists, radio amateurs, educators, and engineers. It comes in three different variants and can be ...

WASHINGTON (AP) — Defense Secretary Pete Hegseth put U.S. troops at risk by sharing sensitive plans about an upcoming military strike in Yemen on his personal phone, according to a Pentagon inspector ...

WASHINGTON – A Pentagon watchdog found that Defense Secretary Pete Hegseth risked the safety of American troops and their mission when he discussed a covert military operation in Yemen over the ...

WASHINGTON (AP) — The Pentagon’s watchdog found that Defense Secretary Pete Hegseth put U.S. personnel and their mission at risk when he used the Signal messaging app to convey sensitive information ...

The March chat shared details of a planned attack on Houthi rebels in Somalia. A Pentagon watchdog concluded that Defense Secretary Pete Hegseth risked exposing sensitive information that could have ...

For nearly nine months, Trump-administration officials have defended top national-security leaders who shared information in a Signal chat about U.S. strikes in Yemen, first reported by The Atlantic’s ...

US Defence Secretary Pete Hegseth did not comply with Pentagon policy and potentially endangered military personnel when he used his personal phone and the Signal app to discuss an upcoming strike, an ...

London-based artificial intelligence startup Signal Media Ltd., better known as Signal AI, today announced it has raised $165 million in new growth-equity funding led by Battery Ventures. Following ...

Never run out of stone again! 🪨💡 In this survival-friendly tutorial, you’ll learn how to build a stone farm in Minecraft — also known as an automatic cobblestone generator. Using Redstone, pistons, ...

The clone, TeleMessage, was the subject of a reported hack in which the contents of some direct messages and group chats were stolen. By Julian E. Barnes U.S. intelligence and international security ...