Phase methods of measuring physical quantities and phase measuring equipment are widely used in various fields of science and technology. The article proposes a signal processing methodology based on a combination of the discrete Hilbert transform (DHT) and deterministic, as well as statistical methods of phase measurement. This methodology makes it possible to more fully use the information resource of the measuring signal phase in a wide range of the signal-to-noise ratio. It can be used both in computerized measurement and testing systems, as well as in the processing of measurement data. The benefits of the DHT are considered. The possibility of using statistics of directional data for phase measurements is shown. Circular statistics, such as the mean ring value, circular variance and the resulting vector length, were proposed for use in the phase measurements. Some examples of the use of this methodology in measurements and non-destructive testing are given.
The article examines the features of building a Controller Area Network (CAN) in the automotive industry. The main steps for encoding and decoding physical values in CAN and CAN FD (CAN with flexible data rate) frames are provided. The syntax of messages and signals in CAN DBC has been analyzed. An example of a DBC file that can be used to encode and decode the speed and engine speed of a truck is reviewed. Based on the Linux operating system and the python programming language, an experimental scheme of a virtual controller area network was created, which encodes data on one node and decodes data on the other using CAN DBC.
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