Signal processing apparatus and method
摘要
說明書
In addition, the weather observation data supplied from the weather observation apparatus 31 is transmitted to a reception apparatus installed, for example, in an urban area near a base of a mountain or the like (e.g., in a research facility of a university or the like, or in a facility such as a data center or the like). The reception apparatus supplies the received weather observation data to a server or the like. That is, the transmission apparatus 100 needs to transmit the wireless signal to a location at a long distance. Note that a lighting power supply can be used for the reception apparatus installed near the mountain base. Accordingly, the reception apparatus may have a high-performance CPU (Central Processing Unit) installed therein to perform sophisticated computations.
To sum up the foregoing, such a low power consumption is demanded of the transmission apparatus 100 as to allow the transmission apparatus 100 to be driven with a battery. Meanwhile, such a high-sensitivity reception performance is demanded of the reception apparatus as to enable long-distance communication. In addition, regarding a communication channel, a time for a continuous transmission is limited. While there are such severe requirements, a high transmission rate is not required because the amount of information to be transmitted is small. In addition, it does not matter when a receiving station has a high power consumption.
