A radar system for detecting a target in an operating area, the radar system comprising: a main antenna arrangement for transmitting and/or receiving electromagnetic waves, the main antenna arrangement comprising at least one main antenna element and at least one main electronics module for transmitting and/or receiving signals to/from the at least one main antenna element, wherein the main antenna arrangement is configured to emit a radiation pattern comprising a main lobe and a side lobe area, wherein said main antenna arrangement is adapted to sweep over the target with the main lobe; an auxiliary antenna arrangement for transmitting and/or receiving electromagnetic waves, the auxiliary antenna arrangement comprising at least one auxiliary antenna element and at least one auxiliary electronics module for transmitting and/or receiving signals to/from the at least one auxiliary antenna element; a controller connected to the main antenna arrangement and to the auxiliary antenna arrangement, the controller being configured to: transmit a first radar waveform from said at least one main antenna element; transmit a second radar waveform from the at least one auxiliary antenna element, and wherein the first radar waveform and the second radar waveform have a normalized cross-correlation factor below 0.5 so the first and second waveforms have a high level of orthogonality; and characterized in that the controller is further configured to: transmit a third radar waveform from the at least one main antenna element during every M:th sweep over the target, M being a positive integer >= 2; transmit the first radar waveform from the at least one main antenna element during the remaining sweeps over the target; and wherein the second radar waveform and the third radar waveform have a normalized cross-correlation factor above 0.5 so as to have a low level of orthogonality. a main antenna arrangement for transmitting and/or receiving electromagnetic waves, the main antenna arrangement comprising at least one main antenna element and at least one main electronics module for transmitting and/or receiving signals to/from the at least one main antenna element, wherein the main antenna arrangement is configured to emit a radiation pattern comprising a main lobe and a side lobe area, wherein said main antenna arrangement is adapted to sweep over the target with the main lobe; an auxiliary antenna arrangement for transmitting and/or receiving electromagnetic waves, the auxiliary antenna arrangement comprising at least one auxiliary antenna element and at least one auxiliary electronics module for transmitting and/or receiving signals to/from the at least one auxiliary antenna element; a controller connected to the main antenna arrangement and to the auxiliary antenna arrangement, the controller being configured to: transmit a first radar waveform from said at least one main antenna element; transmit a second radar waveform from the at least one auxiliary antenna element, and wherein the first radar waveform and the second radar waveform have a normalized cross-correlation factor below 0.5 so the first and second waveforms have a high level of orthogonality; and transmit a first radar waveform from said at least one main antenna element; transmit a second radar waveform from the at least one auxiliary antenna element, and wherein the first radar waveform and the second radar waveform have a normalized cross-correlation factor below 0.5 so the first and second waveforms have a high level of orthogonality; and characterized in that the controller is further configured to: transmit a third radar waveform from the at least one main antenna element during every M:th sweep over the target, M being a positive integer >= 2; transmit the first radar waveform from the at least one main antenna element during the remaining sweeps over the target; and transmit a third radar waveform from the at least one main antenna element during every M:th sweep over the target, M being a positive integer >= 2; transmit the first radar waveform from the at least one main antenna element during the remaining sweeps over the target; and wherein the second radar waveform and the third radar waveform have a normalized cross-correlation factor above 0.5 so as to have a low level of orthogonality.