Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Oct 12;16(10):1682. doi: 10.3390/s16101682

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

In this figure, (a)–(h) are different waveform classes, which including Linear frequency modulation (LFM), Costas codes, Binary phase shift keying (BPSK), Frank, P1, P2, P3 and P4 sequentially. There are significant differences among the Choi–Williams time-frequency distribution (CWD) images. The controllable factor $σ = 1$ also be used.