Transmission device, transmission method, information processing device, information processing method, and program

The present technology pertains to a transmission device, a transmission method, an information processing device, an information processing method, and a program with which it is possible to improve a reception state. Sensor information detected by a sensor unit is transmitted to a management device, and the management device estimates a delay wave due to a multipath on the basis of the sensor information, generates a transmitter parameter for controlling the operation of the transmission unit of a transmitter in accordance with the estimated multipath, and transmits the generated parameter to the transmitter. The transmitter controls, on the basis of the transmitter parameter, the operation of the transmission unit that transmits a broadcast wave. The present technology can be applied, for example, to a broadcast system for transmitting a broadcast wave to a receiver.