公开(公告)号：US10935654B1

公开(公告)日：2021-03-02

申请号：US16150435

申请日：2018-10-03

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Haritkumar M. Shah ,  Robert C. Bonino ,  Martin T. Horstman, Jr. ,  Peter Ladubec, Jr.

IPC: G01S13/78 ,  H04L27/20 ,  H04L27/36 ,  H04B1/04 ,  H04L27/26

Abstract: A transmitter includes a processing circuit to generate I level data and Q level data that, when respectively converted to I baseband input and Q baseband input, cause a carrier signal modulated by the I baseband input and the Q baseband input to have a desired edge shape in the time domain. The edge shape includes a low portion, a high portion, and an edge portion between the low portion and the high portion. The edge portion has a desired edge time compatible with the frequency of the carrier signal. The transmitter further includes a digital-to-analog converter (DAC) to convert the I level data to the I baseband input and the Q level data to the Q baseband input, and an in-phase and quadrature (I/Q) modulator to perform I/Q modulation of the carrier signal according to the I baseband input and the Q baseband input.