There is provided a wireless sensor reader comprising: a transmit circuit configured to generate at least one excitation pulse to cause a wireless sensor to emit at least one response signal corresponding to a sensed parameter value； at least one antenna configured to transmit said at least one excitation pulse and receive said at least one response signal； a receive circuit for amplifying said at least one received response signal； a digital sampling circuit for converting said at least one amplified received response signal to digital representation； a spectrum analysis circuitry for converting said digital representation of said at least one response signal to a frequency domain representation； and a frequency domain circuitry for processing of said frequency domain representation to determine said wireless sensor sensed parameter value.
