Abstract: This application provides a communication method and apparatus, and relates to the communication field. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a first field indicating that the PPDU is an extremely high throughput sounding null data packet EHT sounding NDP transmitted based on orthogonal frequency division multiple access OFDMA, the PPDU further includes an extremely high throughput-long training field EHT-LTF and a packet extension PE field, and the PE field is adjacent to the EHT-LTF; and sending the PPDU. In this way, a Bfee may determine, based on the first field in the PPDU, that the PPDU is the EHT sounding NDP transmitted based on OFDMA, perform channel estimation by using the PPDU, and feed back channel state information to a Bfer, to implement functions such as beamforming and resource scheduling for OFDMA transmission, thereby improving channel quality and a throughput.

Abstract: A modular rapid deployment explosive charge device, the device being configured for simple assembly and ease of access and placement at a target site, with the feature that detonation cords may be reversibly loaded, adjusted, removed or replaced to facilitate flexibility of operation and adjustments to intended characteristics and impact of blast event, facilitate flexibility of operation in placement and in timing of explosive blast event, and features of the device system and methods of fabrication and assembly thereof.

Abstract: A portable night vision apparatus comprising at least one image intensifier tube and a memory. The at least one image intensifier tube is coupled to a power supply and coupled to a processor. The memory is coupled to the processor for the storage of data relating to the apparatus and to the use of the apparatus.

Abstract: A bladder for tamping explosives, the bladder having a reservoir with a sealable opening at a top end thereof, the reservoir being configured to hold an incompressible liquid, and an explosive retaining member disposed on a rear side of the reservoir, the explosive retaining member being configured to hold one or more explosives against the rear side of the reservoir.

Abstract: A portable night vision apparatus comprising at least one image intensifier tube and a memory. The at least one image intensifier tube is coupled to a power supply and coupled to a processor. The memory is coupled to the processor for the storage of data relating to the apparatus and to the use of the apparatus.

Abstract: A bladder for tamping explosives, the bladder having a reservoir with a sealable opening at a top end thereof, the reservoir being configured to hold an incompressible liquid, and an explosive retaining member disposed on a rear side of the reservoir, the explosive retaining member being configured to hold one or more explosives against the rear side of the reservoir.

Abstract: Weapons control systems are disclosed including a handheld display and wiring loom configurations for weapons control systems. A control system for a weapon comprises a sight unit for mounting to the weapon for capturing image data for targeting the weapon. The control system also comprises a handheld display having a sight viewable by at least one eye of an operator of the weapon to view data associated with operation of the weapon including image data collected by the sight unit and a controller to control operation of the weapon. The control system also comprises a communication system coupled to be in communication with the handheld display and the sight unit to enable the operator to remotely view the data associated with operation of the weapon and simultaneously control operation of the weapon.