penetrate obstructions making them favorable for use with a wireless node of a network application_number US 29585802 A description fig1 a is a block diagram of an ultra wide band uwb transceiver in fig1 a the transceiver includes three major components namely receiver 11 radio controller and interface 9 and transmitter 13 alternatively the system may be implemented as a separate receiver 11 and radio controller and interface 9 and a separate transmitter 13 and radio controller and interface 9 the radio controller and interface 9 serves as a media access control mac interface between the uwb wireless communication functions implemented by the receiver 11 and transmitter 13 and applications that use the uwb communications channel for exchanging data with remote devices the receiver 11 includes an antenna 1 that converts a uwb electromagnetic waveform into an electrical signal or optical signal for subsequent processing the uwb signal is generated with a sequence of shape modulated wavelets where the occurrence times of the shape modulated wavelets may also be modulated for analog modulation at least one of the shape control parameters is modulated with the analog signal more typically the wavelets take on m possible shapes digital information is encoded to use one or a combination of the m wavelet shapes and occurrence times to communicate information in one embodiment of the present invention each wavelet communicates one bit for.