A two-stage wake-up circuit and wake-up method for underwater acoustic communication
A wake-up circuit and underwater acoustic communication technology, applied in general control systems, program control, instruments, etc., can solve the problems of high false wake-up rate, single detection type, and high energy consumption of wake-up circuits, so as to prolong the survival time and improve the detection probability. , the effect of reducing power consumption
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[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0035] In order to solve the shortcomings of the current wake-up circuit: high power consumption, single detection range, and high false wake-up rate, this invention proposes a two-stage wake-up circuit for underwater acoustic environments, which realizes two-stage wake-up of nodes and wake-up circuits, and expands the detection of signal types range, reducing the probability of nodes being falsely awakened.
[0036]From the hardware structure of the Modem, we can know that the DSP and transmitter can be used as the hardware for generating and transmitting the wake-up signal, while receiving the wake-up signal and judging and analyzing the wake-up signal requires an additional wake-up circuit module. Therefore, it is necessary to design a wake-up circuit around the receiving node in a dormant state. At the same time, in the underwater acoustic enviro...
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