With the method of frequency conversion image rejection and converters FOR IMPLEMENTATION

摘要

1.method u043fu0440u0435u043eu0431u0440u0430u0437u043eu0432u0430u043du0438u00a0 repression of mirror frequency channel, u0437u0430u043au043bu044eu0447u0430u044eu0449u0438u0439u0441u00a0 is that input signal are mixed in the u043du0435u043bu0438u043du0435u0439u043du043eu043c element with built-in signal heterodyne and mixture serves to filter the intermediate frequency, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 before mixing the input signal u0440u0430u0437u0432u0435u0442u0432u043bu00a0u044eu0442 on two identical channels, u0438u0437u043cu0435u043du00a0u044eu0442 them, so that a useful signal in u043eu0441u0442u0430u043bu0441u00a0 u0441u0438u043du0444u0430u0437u043du044bu043c,and u0437u0435u0440u043au0430u043bu044cu043du0430u00a0 again became u043fu0440u043eu0442u0438u0432u043eu0444u0430u0437u043du043eu0439 channels, then again u043eu0431u044au0435u0434u0438u043du00a0u044eu0442, u0441u0443u043cu043cu0438u0440u0443u00a0.;2.the frequency with the repression of mirror channel containing a mixer and filter the intermediate frequency, the consistently, as well as the heterodyne, door which is connected with the u0433u0435u0442u0435u0440u043eu0434u0438u043du043du044bu043c entrance u0441u043cu0435u0441u0438u0442u0435u043bu00a0, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, at the entrance u0441u043cu0435u0441u0438u0442u0435u043bu00a0 included adder, which is connected with one input gate devices and directlyand the second in line to the load delay u043fu043eu043bu043fu0435u0440u0438u043eu0434u0430 u043au043eu043bu0435u0431u0430u043du0438u00a0 mirror interference, the importance of frequency heterodyne is chosen so that the working frequency the signal was in an even number times the frequency of the mirror interference.