The phrase "are modulated with" is correct and usable in written English.
It can be used in contexts where you are describing how certain elements are adjusted or varied in relation to something else, often in technical or scientific discussions.
Example: "The signals are modulated with varying frequencies to enhance communication clarity."
Alternatives: "are adjusted with" or "are varied with".
These sidebands are modulated with the 2.5 Gb/s NRZ data of length 27 1 using an intensity modulator and then combined with the unmodulated +12th (195.145 THz) order sideband as shown in Fig. 4(a).
Light levels are modulated with computer-controlled louvers programmed to respond to photocells in the walls.
Only each third of subcarriers (M = N/3) are modulated with PN sequence, the remainder subcarriers are filled with zero.
The relay operates in the full-duplex mode and implements the amplify-and-forward protocol while signals are modulated with orthogonal frequency-division multiplexing (OFDM).
As neighboring subcarriers have firmly aligned spectra, the adjacent subcarriers are modulated with the same, appropriately scaled data symbol in order to reduce the sidelobes power.
The IEEE 802.16e standard defines a physical layer that can use 128, 512, 1024, or 2048 subcarriers, which are modulated with BPSK, QPSK, or 16-QAM constellations.
The steady-state signals were modulated with a modulation frequency of 37.1 Hz and a modulation depth of 100%.
Then, let c=(c 0,c 1,…,c n−1) and x=(x 0,x 1,…,x n−1)=1−2 c∈{−1,+1} n be the transmitted codeword and its baseband BPSK-modulated version (that is, before being modulated with the carrier frequency), respectively.
In FBMC/OQAM, each subcarrier is modulated with an OQAM transmitting pulse-amplitude modulation (PAM) symbols at each half a period (T/2).
The utilization of U = 4 codes implies that four modulators are required, or alternatively, each transmitted signal needs to be modulated with four different codes.
