Finally, A List of Public RTK Base Stations in the U.S.
WEBJan 7, 2014 · About the Author: Eric Gakstatter Eric Gakstatter has been involved in the GPS/GNSS industry for more than 20 years. For 10 years, he held several product management positions in the GPS/GNSS industry, managing the development of several medium- and high-precision GNSS products along with associated data-collection and post-processing software.
Anti-jam technology: Demystifying the CRPA - GPS World
WEBApr 12, 2017 · Fast forward to the latter years of the Cold War, and we reach the era when the U.S. was busy developing the exciting new GPS system. The Department of Defense (DoD) wanted to ensure that a robust and accurate global navigation system was available to the military, and so the Navigation System with Timing and Ranging (NAVSTAR) launched its first satellite in 1978, eventually becoming the fully ...
What Exactly Is GPS NMEA Data? - GPS World
WEBFeb 4, 2015 · The purpose of NMEA is to give equipment users the ability to mix and match hardware and software. NMEA-formatted GPS data also makes life easier for software developers to write software for a wide variety of GPS receivers instead of having to write a custom interface for each GPS receiver. For example, …
GPS World - The Business and Technology of Global Navigation …
WEBJun 17, 2024 · September 1, 2024 By Matteo Luccio. Paul McBurney, co-founder and CTO of oneNav, met with Matteo Luccio, GPS World editor-in-chief, to discuss the benefits oneNav’s L5-direct GNSS technology has for alternative …
The transition to M-code begins - GPS World
WEBMay 16, 2022 · There are three key reasons for users to transition to M-code as supported by Military GPS User Equipment (MGUE). First, MGUE provide U.S. forces and our allies with enhanced PNT capabilities while improving resistance to threats, such as accidental and intentional jamming. Compared to the current P …
Part 1: The Origins of GPS, and the Pioneers Who Launched the …
WEBMay 1, 2010 · It subsequently developed a number of experimental satellites, the first of which was called Timation 1. This small satellite, weighing 85 pounds and producing 6 watts of power, was launched on May 27, 1967. Timation 1, developed by NRL, was a miniaturized, innovative design.
A Comparison of Free GPS Online Post-Processing Services
WEBOct 7, 2013 · CenterPoint RTX Post Processing is a free service offered by Trimble. It works anywhere in the world and is based on a proprietary Trimble 100+ worldwide CORS network. Accuracy is 2 cm with 1-hour of observation data; 1 cm with 24-hours. Files longer than 24-hours are not accepted.
The Almanac - GPS World
WEB1. “SV Number” refers to space vehicle number. “PRN Number” refers to the satellite’s unique pseudorandom noise code. 2. Clock: Rb = rubidium; Cs = cesium. 3. “Launched” and “Usable” dates are based on Universal Time. 4. The current active GPS constellation consists of 1 Block IIA, 11 Block IIRs, 7 Block IIR-Ms and 12 Block ...
The differences between Geoid18 values and NAD 83, NAVD 88 …
WEBFeb 5, 2020 · This surface represents the difference between NAVD 88 as a datum and the geopotential (geoid) surface used in the gravimetric geoid. This is the difference between the hybrid geoid and the gravimetric geoid with respect to NAD83 (GEOID18 – xGEOID19B). This surface has three essential components: a bias, a continental tilt, and local warping ...
Accuracy, precision and boundary retracement in surveying
WEBJul 5, 2017 · Accuracy is defined on how well a measurement or reading is in relation to a known value or benchmark. Precision, on the other hand, is how closely a measurement is repeated yet has no relation to any given value or benchmark. The introduction of GNSS technology along with total stations with locking electronic distance measuring (EDM ...