10results about "Dot-and-dash system" patented technology

The application discloses a Morse code signal denoising method and system, and the method comprises a training stage and a use stage, wherein the training stage comprises: constructing an original dictionary for sparse expression of the Morse code signal; and performing dimension reduction on the constructed original dictionary to obtain a dimension reduction matrix and a low-dimensional dictionary; the use stage comprises: segmenting an input Morse code signal by using a sliding window to obtain a plurality of segmented signals; performing signal dimension reduction on each segmented signal by using the dimension reduction matrix to obtain a low-dimensional signal; establishing an optimization model, and performing operation by using the low-dimensional signal and the low-dimensional dictionary to obtain a sparse expression vector; and combining the original dictionary and the sparse expression vector to restore information after denoising of the input signal. The application can effectively suppress noise in the Morse code signal, improve signal processing performance and processing speed, and reduce required data quantity and training cost.

The wireless transmission method, system, and apparatus according to the present invention include the steps of: providing transmission information; converting the transmission information and generating a conversion result; calculating the conversion result and generating a corresponding encoding result; and transmitting a corresponding sound wave signal based on the encoding result. Wireless transmission is performed by executing this method using the wireless transmission system and apparatus.

This invention discloses a method for preparing recyclable, anti-swelling hydrogels based on synergistic hydrophobicity and the Hofmeister effect, belonging to the technical field of polymer functional materials and flexible electronic devices. The preparation method of the recyclable, anti-swelling hydrogel of this invention includes the following steps: dissolving a hydrophobically modified polymer in an organic solvent to obtain a polymer solution, then adding an amine compound to obtain a mixture, and performing gelation treatment to obtain a gel precursor; immersing the gel precursor in an aqueous solution containing salt ions for salting-out enhancement treatment to obtain the recyclable, anti-swelling hydrogel. This method, through molecular design, stably introduces specific salt ions (CO3-) into the hydrophobically modified polymer network. 2‑ SO4 2‑ By utilizing the synergistic enhancement effect of hydrophobic interactions and the Hofmeister salting-out effect, a dense composite network structure full of dynamic physical cross-links was successfully constructed.

A digital full-bandwidth direct-forwarding racon system and a working method adopt a direct forwarding architecture, which combines a digital broadband DRFM real-time forwarding technology and an encoding response architecture with dots replacing a line. A transmitting antenna and a receiving antenna operate independently and simultaneously, and directly and indiscriminately encode and forward all of the radar query signals in an operating frequency band, thus preserving complete waveform information while realizing a Morse encoding of the response information. The digital full bandwidth direct forwarding racon system is equivalent to a target with a special target characteristic, where when a radar signal within the operating frequency band irradiates the target, an echo signal with a specified Morse encoding modulation characteristic would be generated.

A communication system includes multiple nodes of a time-sensitive network and a scheduler device. At least one of the nodes is configured to obtain a first signal that is represented in a frequency domain by multiple frequency components. The scheduler device generates a schedule for transmission of signals including the first signal within the time-sensitive network. The schedule defines multiple slots assigned to different discrete frequency sub-bands within a frequency band. The slots have designated transmission intervals. The nodes are configured to transmit the first signal through the time-sensitive network to a listening device such that the first signal is received at the listening device within a designated time window according to the schedule. At least some of the frequency components of the first signal are transmitted through the time-sensitive network within different slots of the schedule based on the frequency sub-bands assigned to the slots.

The invention provides a wireless transmission method, system and device wherein the wireless transmission method comprises the following steps: providing a piece of transmission information; converting the transmission information to generate a conversion result; calculating the conversion result to generate a corresponding coding result; and transmitting a corresponding sound wave signal according to the coding result. The method is executed through a wireless transmission system and device, and therefore wireless transmission is achieved.

The wireless transmission method, system, and apparatus according to the present invention include the steps of: providing transmission information; converting the transmission information and generating a conversion result; calculating the conversion result and generating a corresponding encoding result; and transmitting a corresponding sound wave signal based on the encoding result. Wireless transmission is performed by executing this method using the wireless transmission system and apparatus.

Methods and apparatus provide for granting and using group quotas, rather than individual quotas, wherein a granted group quota may be shared or divided by an edge Charging Function (eCHF) among individual user terminals among a group of affiliated user terminals. For example, an eCHF sends a charging request for consumption of an edge service by one user terminal among a group of affiliated user terminals. A charging node responds to the request by granting a group quota shareable or dividable among the affiliated user terminals, rather than an individual quota. Correspondingly, the eCHF makes local grant decisions, such as by granting respective fractions of the granted group quota to two or more ones of the affiliated user terminals operating at the involved edge location. "Edge location" refers to an edge connection point of a telecommunication network where one or more types of edge computing services are offered.

The application discloses a kind of optical signal processing method, equipment and vehicle, for solving the problem of low fault tolerance in traditional Morse light communication method.Method part includes: the on-off state sequence of optical signal is acquired, and in the on-off state sequence of the optical signal, synchronization calibration sequence is identified;The duration of each on-off state in the synchronization calibration sequence is measured to dynamically determine minimum pulse reference duration T and wide and narrow pulse duration proportion coefficient K;Based on the minimum pulse reference duration T and the wide and narrow pulse duration proportion coefficient K, the on-off state sequence of the optical signal is carried out pulse width determination, and the physical state sequence of duration characteristics conforming to the duration standard determined by the T and the K is identified;Based on the combination relationship of different physical states in the physical state sequence, corresponding Morse code symbol is reconstructed.