A method for determining a spatial distribution of complex receiver sensitivity of a transceiver coil in a magnetic resonance imaging system, comprising: generating (210, 510) a first RF transmit field with a first transmit coil, the first transmit coil being a transceiver coil, based on imaging parameters and receiving, with the transceiver coil, a first set of magnetic resonance signals; generating a second RF transmit field with a second transmit coil based on the imaging parameters and receiving, with the transceiver coil, a second set of magnetic resonance signals; generating a first set of complex k-space data based on the first set of MR signals; generating a second set of complex k-space data based on the second set of MR signals; estimating (270, 520) an absolute phase of the first RF transmit field of the transceiver coil based on the first set of complex k-space data and the second set of complex k-space data; estimating (280, 530) a magnitude of the first RF transmit field of the transceiver coil based on another set of complex k-space data generated based on sets of MR signals which are excited by the transceiver coil based on different imaging parameters; receiving a set of complex k-space data based on a set of MR signals from nuclear spins excited and received by the transceiver coil; estimating an absolute phase of a receiver sensitivity of the transceiver coil based on a phase image reconstructed from the set of complex k-space data and the absolute phase of the first RF transmit field; and estimating a magnitude of the receiver sensitivity of the transceiver coil based on the magnitude of the first RF transmit field, the absolute phase of the first RF transmit field, and the absolute phase of the receiver sensitivity. generating (210, 510) a first RF transmit field with a first transmit coil, the first transmit coil being a transceiver coil, based on imaging parameters and receiving, with the transceiver coil, a first set of magnetic resonance signals; generating a second RF transmit field with a second transmit coil based on the imaging parameters and receiving, with the transceiver coil, a second set of magnetic resonance signals; generating a first set of complex k-space data based on the first set of MR signals; generating a second set of complex k-space data based on the second set of MR signals; estimating (270, 520) an absolute phase of the first RF transmit field of the transceiver coil based on the first set of complex k-space data and the second set of complex k-space data; estimating (280, 530) a magnitude of the first RF transmit field of the transceiver coil based on another set of complex k-space data generated based on sets of MR signals which are excited by the transceiver coil based on different imaging parameters; receiving a set of complex k-space data based on a set of MR signals from nuclear spins excited and received by the transceiver coil; estimating an absolute phase of a receiver sensitivity of the transceiver coil based on a phase image reconstructed from the set of complex k-space data and the absolute phase of the first RF transmit field; and estimating a magnitude of the receiver sensitivity of the transceiver coil based on the magnitude of the first RF transmit field, the absolute phase of the first RF transmit field, and the absolute phase of the receiver sensitivity.