Accurate radio technology for land surveying, mapping, location-based services, precision farming, space, maritime, machine control and mining. Mission-critical communications solutions for electricity distribution, gas utilities, waterworks, …

2023年4月10日 · 本文介绍了RTKLIB库中的坐标转换函数，包括ECEF到ENU的转换，以及如何计算卫星的几何距离、方位角和高度角。 关键函数如geodist和satazel被详细阐述，涉及地球参数定义、点积计算、矩阵乘法等数学工具。 示例代码展示了如何使用这些函数进行实际计算。 本文代码选自RTKLIB_2.4.2版本，文中所有代码均在rtkcmn.c源文件中， 宏定义 在头文件中。 大致原理：首先使用 ecef2enu 函数将卫星位置从 ECEF 坐标系（地心惯性坐标系）转换为接收机位置 …

SATEL is a Finnish radio modem manufacturer that specializes in developing independent radio networking technology for various industrial applications i.a. land surveying, SCADA, machine control, intelligent transportation systems, telemetry, environmental monitoring and Industrial Internet. SATEL develops and sells private radio technology.

We design, manufacture and offer high quality connectivity solutions that enable secure, mission-critical connections, utilizing the best characteristics of each technology for real-life use-cases. You can create your own independent network that has no surprising data transfer costs or use mobile radio network.

Sathariel (Hebrew: סתריאל, Ancient Greek: Σαθιήλ, romanized: Sathiḗl) is described in the Book of Enoch as the 17th Watcher of the 20 leaders of the 200 fallen angels. Michael Knibb believes the name to mean "Moon of God" or "Dawn of God" based on …

SATELLINE-EASy is a compact radio modem for long-range applications with wide 90 MHz / 70 MHz tuning range and selectable channel spacing. Read more!

Satel USA is an official distributor of Satel radios in the US. When you buy from Satel USA, you get the backing of experts who understand the product inside and out complete with the manufacturer’s warranty and our dedicated support.

SATELL NMS软件为设计无线网络提供功能强大的图形工具，从而确保NMS速传电台仅收发想要的信息。 SATEL数传电台兼容最广泛使用的串行接口：RS-232、RS-485和RS-422。 终端数据速率可在1200bps至38400bps之间进行选择。 发射机的载波功率可以在100mW~5W范围内设置。 当需要用5W输出功率连续发射信号时，可以选用装有散热器的SATELLINE-3AS (d) VHF机型。 根据实地状况的不同，通信连接范围可达数十公里。 SATELLINE-3AS (d) VHF的一个特殊优势十覆 …

2025年3月21日 · Germaine de Staël was born on April 22, 1766 in Paris and died there on July 14, 1817. Her full name was Anne-Louise-Germaine Necker, and after her marriage to the Swedish ambassador, Baron Erik de Staël-Holstein, she became Baroness de Staël-Holstein. Her byname remains Madame de Staël. Her parents had a strong influence on her life growing up.

2025年3月5日 · SATEL is Polish company active in designing, production and sale of high-quality electronic alarm system devices. The product range includes control panels, sirens, detectors, monitoring stations, radio controllers and switching mode power supplies.