A new scheme (LDPC-DSTM) combining irregular low-density parity-check (LDPC) code with differential space-time modulation (DSTM) is used for coded modulation (CM).

To get design parameters of unitary signal constellation for differential space-time modulation,a novel algorithm using genetic search is presented, which combines diagonal parameters and rotation factors of rotated unitary signal constellation into a codeword.

To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.

Differential Unitary Space-Time Modulation (DUSTM), which is a multi-antenna modulation technique for time-varying fading channels, can obtain full diversity gains without channel state information at the receiver in slowly fading channels.

Differential Unitary Space-Time Modulation (DUSTM) based on diagonal signals achieves full antenna diversity without requiring channel estimation.

Research on Software Receiver Algorithm of Space-time Modulation Signal;

Presents the cold and heat sources,water system,ventilation system and control system designed for the project,and discusses emphatically the cold source setting of the ice-storage system,the air distribution design of stratified air conditioning in large space and energy efficient operation at partial load of the air conditioning system.

Describes an air jets model, the inter-parallel non-isothermal jets model, in large space buildings with stratified air conditioning system.

Adopts stratified air conditioning mode with ejector nozzle air supply outlets for this large space building.