Radio receiver with hybrid channelizer architecture

A method comprising:

• obtaining, from a radiofrequency signal received at a receiver, a first digital signal and second digital signal that is frequency shifted with respect to the first digital signal;
• providing the first digital signal to a first polyphase filter bank that provides filter bank outputs for a first plurality of sub-bands, each of the sub-bands in the first plurality of sub-bands having a passband;
• providing the second digital signal to a second polyphase filter bank that provides filter bank outputs for a second plurality of sub-bands, wherein each of the sub-bands in the second plurality of sub-bands has a passband that at least partially overlaps with at least one of the passbands of the first sub-bands;
• and
• selecting, for each of multiple channels of output by the receiver, a respective sub-band from among the first plurality of sub-bands and the second plurality of sub-bands.

One or more non-transitory machine-readable storage media storing instructions that when executed by one or more processors cause the one or more processors to perform operations comprising:

• obtaining, from a radiofrequency signal received at a receiver, a first digital signal and second digital signal that is frequency shifted with respect to the first digital signal;
• providing the first digital signal to a first polyphase filter bank that provides filter bank outputs for a first plurality of sub-bands, each of the sub-bands in the first plurality of sub-bands having a passband;
• providing the second digital signal to a second polyphase filter bank that provides filter bank outputs for a second plurality of sub-bands, wherein each of the sub-bands in the second plurality of sub-bands has a passband that at least partially overlaps with at least one of the passbands of the first sub-bands;
• and
• selecting, for each of multiple channels of output by the receiver, a respective sub-band from among the first plurality of sub-bands and the second plurality of sub-bands.