Precise Point Positioning (PPP) is widely used for high-accuracy navigation, but broadcast ephemeris from the BDS-3 system still suffers from hourly discontinuities that degrade real-time performance.

2021 JUL 16 (NewsRx) -- By a News Reporter-Staff News Editor at Insurance Daily News-- New research on insurance is the subject of a new report. According to news reporting originating from Hamburg, ...

In this paper, the problem of channel estimation for Superposition Coded Modulation-Orthogonal Frequency Division Multiplexing (SCM-OFDM) systems over frequency selective channels is investigated.

Many of the inventors who fueled the digital revolution have become household names. And rightfully so. Innovators such as Steve Jobs, Bill Gates, and Mark Zuckerberg all contributed mightily to the ...