Signal description of Linux

In Linux, it is very important to understand the concept of signal. This is because signals are used in some of the common activities done through the Linux command line. For example, whenever you press Ctrl + C to terminate a command from the command line, you use the signal. Whenever you end a process […]

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In 2024, mobile phones will get their 5g signals from the sky

In the near future, mobile phones may get their 5g signals from the sky, rather than from antenna poles near the ground. This is an innovative way to solve the problem of increasing connectivity without adding thousands of ground cellular towers. The concept is called high altitude platform station (HAPS), which actually takes the cellular […]

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Crosstalk and reflection can make the signal more incomplete

Definition of signal integrity: signal integrity (SI) refers to the signal quality on the signal line. Poor signal integrity is not caused by a single factor, but by many factors in board level design. When the signal can reach the receiver with the required time sequence, duration and voltage amplitude, the circuit has good signal […]

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Signal processing mechanism of deep general UNIX virtual machine

Interrupt processing is the key part of operating system and system software. Software interrupt under UNIX is called signal, which usually occurs in the following three situations (1) When the user presses any key assigned to the signal control character by the terminal driver, the kernel sends a signal to the corresponding process. For example, […]

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This paper describes the factors that affect the safety of UAV in flight

While enjoying the pleasure and convenience brought by UAV, we must know that the flight of UAV depends on the normal operation of various signals to achieve smooth flight. If the signal is affected, it will directly affect the normal operation of UAV. Therefore, in order to achieve flight safety, it is particularly important to […]

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