Abstract: The present invention discloses an adjustable holographic metamaterial antenna structure, wherein the structure comprises: a surface waveguide feed network configured to connect to a power dividing network; a varactor diode bias circuit configured to comprise a direct current bias circuit and a plurality of varactor diodes associated with the direct current bias circuit; and a metamaterial surface arranged above the direct current bias circuit, and the metamaterial surface and the direct current bias circuit are connected through a bias via hole; wherein the metamaterial surface and the direct current bias circuit separately perform direct current bias feeding on each of the varactor diodes, and an interference pattern of the metamaterial surface is changed to achieve scanning of a radiation pattern. The present invention solves the problems that a two-dimensional feed network layout of a holographic-metamaterial antenna is difficult and is easy to interfere with radio frequency signals.

Abstract: A method for controlling vibration of flexible mechanical arms based on cooperative tracking is disclosed, including: building a dynamic model of the flexible mechanical arm, according to a dynamic characteristic, constructing a flexible mechanical arm group made up of a plurality of flexible mechanical arms, assigning one of the plurality of flexible mechanical arms as a leader and the rest ones as followers which are required to track the leader's motion trajectory so as to realize cooperative work; designing cooperative control-based boundary controllers in combination with a Lyapunov method to realize cooperative work and suppress vibration of the flexible mechanical arms; and constructing a Lyapunov function using Lyapunov direct method to validate stability of the flexible mechanical arms under the control.

Abstract: The present application discloses a VICTS antenna based on an RGW structure, comprising an RGW feeding layer and a radiation layer arranged in sequence, wherein the RGW feeding layer comprises an RGW power splitter and a dielectric substrate for slow wave design, and the RGW power splitter is arranged under the dielectric substrate, wherein a power splitting network cover plate is arranged between the RGW feeding layer and the radiation layer, wherein the RGW power splitter comprises a feeding network and a waveguide feeding port, through which signals are input into the feeding network; the radiation layer is composed of a plurality of CTS arrays. During signal transmission, the signals are input into the feeding network through the waveguide port, and then the signals are fed into each CTS array by the feeding network; the radiation layer is configured to rotate.

Abstract: A method for controlling vibration of flexible mechanical arms based on cooperative tracking is disclosed, including: building a dynamic model of the flexible mechanical arm, according to a dynamic characteristic, constructing a flexible mechanical arm group made up of a plurality of flexible mechanical arms, assigning one of the plurality of flexible mechanical arms as a leader and the rest ones as followers which are required to track the leader's motion trajectory so as to realize cooperative work; designing cooperative control-based boundary controllers in combination with a Lyapunov method to realize cooperative work and suppress vibration of the flexible mechanical arms; and constructing a Lyapunov function using Lyapunov direct method to validate stability of the flexible mechanical arms under the control.

Abstract: A translation device includes: a controller that extracts a proper noun candidate from an original sentence, generates a translation word of the proper noun candidate in a second language, generates a second translated sentence by translating the original sentence into the second language based on the proper noun candidate and the translation word of the proper noun candidate, and generates a second reverse-translated sentence by translating the second translated sentence into the first language based on the proper noun candidate and the translation word of the proper noun candidate; a display that displays the first reverse-translated sentence and the second reverse-translated sentence; and an operation unit that receives a user operation of selecting one of the first reverse-translated sentence and the second reverse-translated sentence.

Abstract: A translation device includes an input unit configured to receive an input sentence in an original language, a controller configured to generate a first translation sentence obtained by translation of the input sentence into a first language, and a display. The controller generates a second translation sentence obtained by translation of the input sentence into a second language different from the first language, a first reverse translation sentence obtained by reverse translation of the first translation sentence into the original language, and a second reverse translation sentence obtained by reverse translation of the second translation sentence into the original language.

Abstract: A translation device includes: a controller that extracts a proper noun candidate from an original sentence, generates a translation word of the proper noun candidate in a second language, generates a second translated sentence by translating the original sentence into the second language based on the proper noun candidate and the translation word of the proper noun candidate, and generates a second reverse-translated sentence by translating the second translated sentence into the first language based on the proper noun candidate and the translation word of the proper noun candidate; a display that displays the first reverse-translated sentence and the second reverse-translated sentence; and an operation unit that receives a user operation of selecting one of the first reverse-translated sentence and the second reverse-translated sentence.

Abstract: A translation device includes an input unit configured to receive an input sentence in an original language, a controller configured to generate a first translation sentence obtained by translation of the input sentence into a first language, and a display. The controller generates a second translation sentence obtained by translation of the input sentence into a second language different from the first language, a first reverse translation sentence obtained by reverse translation of the first translation sentence into the original language, and a second reverse translation sentence obtained by reverse translation of the second translation sentence into the original language.