Friday, 06 October 2023 19:39

How a Kalman filter works

Kalman filter makes me sad because it is such a general and powerful tool for combining information in the presence of uncertainty. At times its ability to extract accurate information seems almost magical— and if it sounds like I’m talking this up too much, then take a look at this previously posted video where I demonstrate a Kalman filter figuring out the orientation of a free-floating body by looking at its velocity. Totally neat!

Murata has launched the world’s smallest ultra-wideband (UWB) module – measuring just 10.5 mm x 8.3 mm x 1.44 mm – that combines elevated levels of accuracy and reliability with low-power to ensure compact and battery-driven IoT devices operate as efficiently and cost-effectively as possible.

Qorvo's UWB Solutions Interoperable with Apple's U1 Chip for Ultra-Wideband Enabled Experiences

Qorvo, a leading provider of innovative RF solutions that connect the world announced the interoperability of its DW3000 family of products with the Apple U1 chip used in iPhone and Apple Watch models and the new Nearby Interaction protocol specification draft unveiled at the 2021 Worldwide Developers Conference. This compatibility will enable developers to easily evaluate new app experiences based on location, distance, and direction relative to a U1-equipped iPhone or Apple Watch. The DW3000 is Qorvo's next-generation ultra-wideband (UWB) chipset family and is ramping into full production in four variants, along with several modules and beta development kits.

Qorvo’s cutting-edge ultra-wideband (UWB) products add key location functionality to existing applications and unleash a completely new class of emerging location-based products and services.

Qorvo’s UWB products are available as ICs or modules (with or without a microcontroller). We also have development kits that allow you to explore the possibilities with ultra-wideband.

刚进入6月,俄罗斯气象局就曾报道,在北极圈内的维尔霍扬斯克附近记录到的地面最高温度达到48摄氏度。如此高的地表温度意味着气温至少有三十度以上。而这只是全球气候变暖的一个缩影。

二氧化碳排放犹如被打开的潘多拉魔盒,暴雨、山火、气候变化、海平面上升等一系列的蝴蝶效应随之而来。现在,如何关上这个“魔盒”,成了环境课题的重中之重。

7月16日,全国碳排放权交易正式开市,掀起了“碳中和”的又一轮热潮。众多企业围绕碳中和提出了全新的战略目标,碳中和概念股成为耀眼明星,有股票因切中“碳中和”概念,连续21天涨停。不少和碳中和概念相关的上市公司也被调研机构“踏破门槛”。在国外,更是有近百家互联网企业宣布了各自的碳中和策略。

小小的一个“碳”,影响着每家企业的战略,也牵动着每一个普通人的心:我们究竟可以为碳中和做些什么?

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